Feature: custom color classes

Inspired by tachyons, easily add additional colors to slides using the `colors` argument. The argument takes a named list or vector and adds a CSS variable with the color name. Also added are .<color> and .bg-<name> classes.

DESCRIPTION

 Encoding: UTF-8
 LazyData: true
 Roxygen: list(markdown = TRUE)
-RoxygenNote: 6.1.1
+RoxygenNote: 7.0.2

R/color.R

+prepare_colors <- function(colors = NULL) {
+  if (is.null(colors) || length(colors) < 1) return(NULL)
+
+  if (is.null(names(colors))) {
+    stop(
+      "`colors` must have names corresponding to valid CSS classes",
+      call. = FALSE
+    )
+  }
+
+  if (any(grepl("\\s", names(colors)))) {
+    stop(
+      "Color names in `colors` must be valid CSS classes",
+      " and cannot contain spaces",
+      call. = FALSE)
+  }
+
+  if (any(grepl("[^[:alpha:]_-]", names(colors)))) {
+    stop("Color names in `colors` must be valid CSS classes", call. = FALSE)
+  }
+
+  whisker::iteratelist(colors, "color_name")
+}

R/style_duo.R

 #' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
+#' @param colors A named vector of custom colors. The names of the colors
+#'   become CSS variables and classes that can be used within your slides.
+#'   For example, `colors = c(blue = "#bad4ed")` adds a CSS variable
+#'   `--blue`, a `.blue` CSS class that applies the color to the text or
+#'   foreground color, and a `.bg-blue` CSS class that applies the color
+#'   to the background.
 #' @template extra_css
 #' @param outfile Customized xaringan CSS output file name, default is "xaringan-themer.css"
 #' @family themes
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
+  colors = NULL,
   extra_css = NULL,
   extra_fonts = NULL,
   outfile = "xaringan-themer.css"

R/style_duo_accent.R

 #' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
+#' @param colors A named vector of custom colors. The names of the colors
+#'   become CSS variables and classes that can be used within your slides.
+#'   For example, `colors = c(blue = "#bad4ed")` adds a CSS variable
+#'   `--blue`, a `.blue` CSS class that applies the color to the text or
+#'   foreground color, and a `.bg-blue` CSS class that applies the color
+#'   to the background.
 #' @template extra_css
 #' @param outfile Customized xaringan CSS output file name, default is "xaringan-themer.css"
 #' @family themes
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
+  colors = NULL,
   extra_css = NULL,
   extra_fonts = NULL,
   outfile = "xaringan-themer.css"

R/style_duo_accent_inverse.R

 #' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
+#' @param colors A named vector of custom colors. The names of the colors
+#'   become CSS variables and classes that can be used within your slides.
+#'   For example, `colors = c(blue = "#bad4ed")` adds a CSS variable
+#'   `--blue`, a `.blue` CSS class that applies the color to the text or
+#'   foreground color, and a `.bg-blue` CSS class that applies the color
+#'   to the background.
 #' @template extra_css
 #' @param outfile Customized xaringan CSS output file name, default is "xaringan-themer.css"
 #' @family themes
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
+  colors = NULL,
   extra_css = NULL,
   extra_fonts = NULL,
   outfile = "xaringan-themer.css"

R/style_mono_accent.R

 #' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
+#' @param colors A named vector of custom colors. The names of the colors
+#'   become CSS variables and classes that can be used within your slides.
+#'   For example, `colors = c(blue = "#bad4ed")` adds a CSS variable
+#'   `--blue`, a `.blue` CSS class that applies the color to the text or
+#'   foreground color, and a `.bg-blue` CSS class that applies the color
+#'   to the background.
 #' @template extra_css
 #' @param outfile Customized xaringan CSS output file name, default is "xaringan-themer.css"
 #' @family themes
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
+  colors = NULL,
   extra_css = NULL,
   extra_fonts = NULL,
   outfile = "xaringan-themer.css"

R/style_mono_accent_inverse.R

 #' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
+#' @param colors A named vector of custom colors. The names of the colors
+#'   become CSS variables and classes that can be used within your slides.
+#'   For example, `colors = c(blue = "#bad4ed")` adds a CSS variable
+#'   `--blue`, a `.blue` CSS class that applies the color to the text or
+#'   foreground color, and a `.bg-blue` CSS class that applies the color
+#'   to the background.
 #' @template extra_css
 #' @param outfile Customized xaringan CSS output file name, default is "xaringan-themer.css"
 #' @family themes
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
+  colors = NULL,
   extra_css = NULL,
   extra_fonts = NULL,
   outfile = "xaringan-themer.css"

R/style_mono_dark.R

 #' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
+#' @param colors A named vector of custom colors. The names of the colors
+#'   become CSS variables and classes that can be used within your slides.
+#'   For example, `colors = c(blue = "#bad4ed")` adds a CSS variable
+#'   `--blue`, a `.blue` CSS class that applies the color to the text or
+#'   foreground color, and a `.bg-blue` CSS class that applies the color
+#'   to the background.
 #' @template extra_css
 #' @param outfile Customized xaringan CSS output file name, default is "xaringan-themer.css"
 #' @family themes
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
+  colors = NULL,
   extra_css = NULL,
   extra_fonts = NULL,
   outfile = "xaringan-themer.css"

R/style_mono_light.R

 #' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
+#' @param colors A named vector of custom colors. The names of the colors
+#'   become CSS variables and classes that can be used within your slides.
+#'   For example, `colors = c(blue = "#bad4ed")` adds a CSS variable
+#'   `--blue`, a `.blue` CSS class that applies the color to the text or
+#'   foreground color, and a `.bg-blue` CSS class that applies the color
+#'   to the background.
 #' @template extra_css
 #' @param outfile Customized xaringan CSS output file name, default is "xaringan-themer.css"
 #' @family themes
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
+  colors = NULL,
   extra_css = NULL,
   extra_fonts = NULL,
   outfile = "xaringan-themer.css"

R/style_solarized_dark.R

 #' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
+#' @param colors A named vector of custom colors. The names of the colors
+#'   become CSS variables and classes that can be used within your slides.
+#'   For example, `colors = c(blue = "#bad4ed")` adds a CSS variable
+#'   `--blue`, a `.blue` CSS class that applies the color to the text or
+#'   foreground color, and a `.bg-blue` CSS class that applies the color
+#'   to the background.
 #' @template extra_css
 #' @param outfile Customized xaringan CSS output file name, default is "xaringan-themer.css"
 #' @family themes
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
+  colors = NULL,
   extra_css = NULL,
   extra_fonts = NULL,
   outfile = "xaringan-themer.css"

R/style_solarized_light.R

 #' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
+#' @param colors A named vector of custom colors. The names of the colors
+#'   become CSS variables and classes that can be used within your slides.
+#'   For example, `colors = c(blue = "#bad4ed")` adds a CSS variable
+#'   `--blue`, a `.blue` CSS class that applies the color to the text or
+#'   foreground color, and a `.bg-blue` CSS class that applies the color
+#'   to the background.
 #' @template extra_css
 #' @param outfile Customized xaringan CSS output file name, default is "xaringan-themer.css"
 #' @family themes
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
+  colors = NULL,
   extra_css = NULL,
   extra_fonts = NULL,
   outfile = "xaringan-themer.css"

R/style_xaringan.R

 #' @param code_font_size Code Text Font Size. Defaults to 0.9em. Modifies the `.remark-inline` class.
 #' @param code_font_url Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the `@import url` elements.
 #' @param code_font_family_fallback Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the `.remark-code, .remark-inline-code` classes.
+#' @param colors A named vector of custom colors. The names of the colors
+#'   become CSS variables and classes that can be used within your slides.
+#'   For example, `colors = c(blue = "#bad4ed")` adds a CSS variable
+#'   `--blue`, a `.blue` CSS class that applies the color to the text or
+#'   foreground color, and a `.bg-blue` CSS class that applies the color
+#'   to the background.
 #' @template extra_css
 #' @param outfile Customized xaringan CSS output file name, default is "xaringan-themer.css"
 #' @family themes
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
+  colors = NULL,
   extra_css = NULL,
   extra_fonts = NULL,
   outfile = "xaringan-themer.css"
 ) {
+  # DO NOT EDIT - Generated from inst/scripts/generate_theme_functions.R
   # Make sure font names are wrapped in quotes if they have spaces
   f_args <- names(formals(sys.function()))
   for (var in f_args[grepl("font_family$", f_args)]) {
     ignore = header_background_ignore_classes
   )
   
+  colors <- prepare_colors(colors)
+  
   tf <- system.file("resources", "template.css", package = "xaringanthemer")
   template <- readLines(tf, warn = FALSE)
   template <- paste(template, collapse = "\n")

inst/resources/template.css

   --inverse-background-color: {{inverse_background_color}};
   --inverse-header-color: {{inverse_header_color}};
   --title-slide-background-color: {{title_slide_background_color}};
-  --title-slide-text-color: {{title_slide_text_color}};
+  --title-slide-text-color: {{title_slide_text_color}};{{#colors}}
+  --{{color_name}}: {{value}};
+  {{/colors}}
+
 }
 
 html {
     left: 0 !important;
   }
 }
+
+{{#colors}}
+.{{color_name}} {
+  color: var(--{{color_name}});
+}
+.bg-{{color_name}} {
+  background-color: var(--{{color_name}});
+}
+{{/colors}}

inst/scripts/generate_theme_functions.R

   template = template_variables,
   ...,
   file = "",
-  body = c(
-    "  # DO NOT EDIT - Generated from inst/scripts/generate_theme_functions.R",
-    "  eval(parse(text = call_style_xaringan()))"
-  )
+  body = "  eval(parse(text = call_style_xaringan()))"
 ) {
   if (file == "clip" && !requireNamespace("clipr", quietly = TRUE)) file <- ""
+  body <- c(
+    "  # DO NOT EDIT - Generated from inst/scripts/generate_theme_functions.R",
+    body
+  )
   tv <- template
   null_default <- purrr::map_lgl(tv$default, is.null)
   tv[null_default, "default"] <- "{NULL}"
         "{element_description(element)}"
       )
     ),
+    "#' @param colors A named vector of custom colors. The names of the colors",
+    "#'   become CSS variables and classes that can be used within your slides.",
+    "#'   For example, `colors = c(blue = \"#bad4ed\")` adds a CSS variable",
+    "#'   `--blue`, a `.blue` CSS class that applies the color to the text or",
+    "#'   foreground color, and a `.bg-blue` CSS class that applies the color",
+    "#'   to the background.",
     "#' @template extra_css",
     "#' @param outfile Customized xaringan CSS output file name, default is \"xaringan-themer.css\"",
     "#' @family themes",
         "  {variable} = {ifelse(!grepl('^[{].+[}]$', default), paste0('\"', default, '\"'), gsub('[{}]', '', default))},"
       )
     ),
+    "  colors = NULL,",
     "  extra_css = NULL,",
     "  extra_fonts = NULL,",
     "  outfile = \"xaringan-themer.css\"",

inst/scripts/style_xaringan_body.R

   ignore = header_background_ignore_classes
 )
 
+colors <- prepare_colors(colors)
+
 tf <- system.file("resources", "template.css", package = "xaringanthemer")
 template <- readLines(tf, warn = FALSE)
 template <- paste(template, collapse = "\n")

man/apply_alpha.Rd

 }
 \description{
 Applies alpha (or opacity) to a color in hexadecimal form by
-converting opacity in the \code{[0, 1]} range to hex in the \code{[0, 255]} range
+converting opacity in the \verb{[0, 1]} range to hex in the \verb{[0, 255]} range
 and appending to the hex color.
 }

man/google_language_codes.Rd

 \alias{google_language_codes}
 \title{List Valid Google Language Codes}
 \usage{
-google_language_codes(language_codes = c("latin", "latin-ext", "sinhala",
-  "greek", "hebrew", "vietnamese", "cyrillic", "cyrillic-ext",
-  "devanagari", "arabic", "khmer", "tamil", "greek-ext", "thai", "bengali",
-  "gujarati", "oriya", "malayalam", "gurmukhi", "kannada", "telugu",
-  "myanmar"))
+google_language_codes(
+  language_codes = c("latin", "latin-ext", "sinhala", "greek", "hebrew", "vietnamese",
+    "cyrillic", "cyrillic-ext", "devanagari", "arabic", "khmer", "tamil", "greek-ext",
+    "thai", "bengali", "gujarati", "oriya", "malayalam", "gurmukhi", "kannada", "telugu",
+    "myanmar")
+)
 }
 \arguments{
 \item{language_codes}{Vector of potential Google language codes}

man/scale_xaringan.Rd

 \alias{scale_xaringan_colour_continuous}
 \title{Xaringan Themer ggplot2 Scales}
 \usage{
-scale_xaringan_discrete(aes_type = c("color", "colour", "fill"), ...,
-  color = NULL, direction = 1, inverse = FALSE)
+scale_xaringan_discrete(
+  aes_type = c("color", "colour", "fill"),
+  ...,
+  color = NULL,
+  direction = 1,
+  inverse = FALSE
+)
 
-scale_xaringan_fill_discrete(..., color = NULL, direction = 1,
-  inverse = FALSE)
+scale_xaringan_fill_discrete(..., color = NULL, direction = 1, inverse = FALSE)
 
-scale_xaringan_color_discrete(..., color = NULL, direction = 1,
-  inverse = FALSE)
+scale_xaringan_color_discrete(
+  ...,
+  color = NULL,
+  direction = 1,
+  inverse = FALSE
+)
 
-scale_xaringan_colour_discrete(..., color = NULL, direction = 1,
-  inverse = FALSE)
+scale_xaringan_colour_discrete(
+  ...,
+  color = NULL,
+  direction = 1,
+  inverse = FALSE
+)
 
-scale_xaringan_continuous(aes_type = c("color", "colour", "fill"), ...,
-  color = NULL, begin = 0, end = 1, inverse = FALSE)
+scale_xaringan_continuous(
+  aes_type = c("color", "colour", "fill"),
+  ...,
+  color = NULL,
+  begin = 0,
+  end = 1,
+  inverse = FALSE
+)
 
-scale_xaringan_fill_continuous(..., color = NULL, begin = 0, end = 1,
-  inverse = FALSE)
+scale_xaringan_fill_continuous(
+  ...,
+  color = NULL,
+  begin = 0,
+  end = 1,
+  inverse = FALSE
+)
 
-scale_xaringan_color_continuous(..., color = NULL, begin = 0,
-  end = 1, inverse = FALSE)
+scale_xaringan_color_continuous(
+  ...,
+  color = NULL,
+  begin = 0,
+  end = 1,
+  inverse = FALSE
+)
 
-scale_xaringan_colour_continuous(..., color = NULL, begin = 0,
-  end = 1, inverse = FALSE)
+scale_xaringan_colour_continuous(
+  ...,
+  color = NULL,
+  begin = 0,
+  end = 1,
+  inverse = FALSE
+)
 }
 \arguments{
 \item{aes_type}{The type of aesthetic to which the scale is being applied.

man/style_duo.Rd

 \alias{style_duo}
 \title{Duotone Theme}
 \usage{
-style_duo(primary_color = "#1F4257", secondary_color = "#F97B64",
-  text_color = choose_dark_or_light(primary_color,
-  darken_color(primary_color, 0.9), lighten_color(secondary_color, 0.99)),
-  header_color = secondary_color, background_color = primary_color,
-  link_color = secondary_color, text_bold_color = secondary_color,
+style_duo(
+  primary_color = "#1F4257",
+  secondary_color = "#F97B64",
+  text_color = choose_dark_or_light(primary_color, darken_color(primary_color, 0.9),
+    lighten_color(secondary_color, 0.99)),
+  header_color = secondary_color,
+  background_color = primary_color,
+  link_color = secondary_color,
+  text_bold_color = secondary_color,
   text_slide_number_color = text_color,
-  padding = "1rem 4rem 1rem 4rem", background_image = NULL,
-  background_size = NULL, background_position = NULL,
+  padding = "1rem 4rem 1rem 4rem",
+  background_image = NULL,
+  background_size = NULL,
+  background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = secondary_color,
-  code_inline_background_color = NULL, code_inline_font_size = "1em",
+  code_inline_background_color = NULL,
+  code_inline_font_size = "1em",
   inverse_background_color = secondary_color,
-  inverse_text_color = primary_color, inverse_text_shadow = FALSE,
+  inverse_text_color = primary_color,
+  inverse_text_shadow = FALSE,
   inverse_header_color = primary_color,
   title_slide_text_color = secondary_color,
   title_slide_background_color = primary_color,
   title_slide_background_image = NULL,
   title_slide_background_size = NULL,
-  title_slide_background_position = NULL, footnote_color = NULL,
-  footnote_font_size = "0.9em", footnote_position_bottom = "3em",
+  title_slide_background_position = NULL,
+  footnote_color = NULL,
+  footnote_font_size = "0.9em",
+  footnote_position_bottom = "3em",
   left_column_subtle_color = apply_alpha(secondary_color, 0.6),
   left_column_selected_color = secondary_color,
   blockquote_left_border_color = apply_alpha(secondary_color, 0.5),
-  table_border_color = "#666", table_row_border_color = "#ddd",
+  table_border_color = "#666",
+  table_row_border_color = "#ddd",
   table_row_even_background_color = lighten_color(primary_color, 0.3),
-  text_font_size = "20px", header_h1_font_size = "55px",
-  header_h2_font_size = "45px", header_h3_font_size = "35px",
+  text_font_size = "20px",
+  header_h1_font_size = "55px",
+  header_h2_font_size = "45px",
+  header_h3_font_size = "35px",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
-  header_background_ignore_classes = c("normal", "inverse", "title",
-  "middle", "bottom"), text_slide_number_font_size = "0.9em",
-  text_font_google = NULL, text_font_family = "'Droid Serif'",
+  header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
+  text_slide_number_font_size = "0.9em",
+  text_font_google = NULL,
+  text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
-  text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
-  text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
-  text_font_base = "serif", header_font_google = NULL,
+ 
+    text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
+ 
+    text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
+  text_font_base = "serif",
+  header_font_google = NULL,
   header_font_family = "'Yanone Kaffeesatz'",
   header_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
-  code_font_google = NULL, code_font_family = "'Source Code Pro'",
+  code_font_google = NULL,
+  code_font_family = "'Source Code Pro'",
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
-  extra_css = NULL, extra_fonts = NULL,
-  outfile = "xaringan-themer.css")
+  colors = NULL,
+  extra_css = NULL,
+  extra_fonts = NULL,
+  outfile = "xaringan-themer.css"
+)
 }
 \arguments{
 \item{primary_color}{Duotone Primary Color. Defaults to #1F4257. Modifies multiple CSS classes or elements.}
 
 \item{text_color}{Text Color. Defaults to \code{choose_dark_or_light(primary_color, darken_color(primary_color, 0.9), lighten_color(secondary_color, 0.99))}. Modifies the \code{body} element.}
 
-\item{header_color}{Header Color. Defaults to \code{secondary_color}. Modifies the \code{h1, h2, h3} elements.}
+\item{header_color}{Header Color. Defaults to \code{secondary_color}. Modifies the \verb{h1, h2, h3} elements.}
 
 \item{background_color}{Slide Background Color. Defaults to \code{primary_color}. Modifies the \code{.remark-slide-content} class.}
 
-\item{link_color}{Link Color. Defaults to \code{secondary_color}. Modifies the \code{a, a > code} elements.}
+\item{link_color}{Link Color. Defaults to \code{secondary_color}. Modifies the \verb{a, a > code} elements.}
 
 \item{text_bold_color}{Bold Text Color. Defaults to \code{secondary_color}. Modifies the \code{strong} element.}
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to \code{text_color}. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \code{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{inverse_text_shadow}{Enables Shadow on text of inverse slides. Defaults to \code{FALSE}. Modifies the \code{.inverse} class.}
 
-\item{inverse_header_color}{Inverse Header Color. Defaults to \code{primary_color}. Modifies the \code{.inverse h1, .inverse h2, .inverse h3} classes.}
+\item{inverse_header_color}{Inverse Header Color. Defaults to \code{primary_color}. Modifies the \verb{.inverse h1, .inverse h2, .inverse h3} classes.}
 
 \item{title_slide_text_color}{Title Slide Text Color. Defaults to \code{secondary_color}. Modifies the \code{.title-slide} class.}
 
 
 \item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
 
-\item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(secondary_color, 0.6)}. Modifies the \code{.left-column h2, .left-column h3} classes.}
+\item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(secondary_color, 0.6)}. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
-\item{left_column_selected_color}{Left Column Current Selection. Defaults to \code{secondary_color}. Modifies the \code{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
+\item{left_column_selected_color}{Left Column Current Selection. Defaults to \code{secondary_color}. Modifies the \verb{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
 
 \item{blockquote_left_border_color}{Blockquote Left Border Color. Defaults to \code{apply_alpha(secondary_color, 0.5)}. Modifies the \code{blockquote} element.}
 
-\item{table_border_color}{Table top/bottom border. Defaults to #666. Modifies the \code{table: border-top, border-bottom} elements.}
+\item{table_border_color}{Table top/bottom border. Defaults to #666. Modifies the \verb{table: border-top, border-bottom} elements.}
 
-\item{table_row_border_color}{Table row inner bottom border. Defaults to #ddd. Modifies the \code{table thead th: border-bottom} elements.}
+\item{table_row_border_color}{Table row inner bottom border. Defaults to #ddd. Modifies the \verb{table thead th: border-bottom} elements.}
 
-\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{lighten_color(primary_color, 0.3)}. Modifies the \code{thead, tfoot, tr:nth-child(even)} elements.}
+\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{lighten_color(primary_color, 0.3)}. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
 \item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \code{.remark-slide-content h2} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \code{.remark-slide-content h3} class.}
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
-\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \verb{.remark-slide-content h1} class.}
 
 \item{header_background_content_padding_top}{Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{text_font_weight}{Body Text Font Weight. Defaults to normal. Modifies the \code{body} element.}
 
-\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \code{@import url()} elements.}
+\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \verb{@import url()} elements.}
 
 \item{text_font_family_fallback}{Body Text Font Fallbacks. Defaults to 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'. Modifies the \code{body} element.}
 
 
 \item{header_font_google}{Use \code{google_font()} to specify header font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \code{@import url} elements.}
+\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \verb{@import url} elements.}
 
 \item{code_font_google}{Use \code{google_font()} to specify code font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
 \item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
 
-\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \code{@import url} elements.}
+\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 
-\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
+
+\item{colors}{A named vector of custom colors. The names of the colors
+become CSS variables and classes that can be used within your slides.
+For example, \code{colors = c(blue = "#bad4ed")} adds a CSS variable
+\code{--blue}, a \code{.blue} CSS class that applies the color to the text or
+foreground color, and a \code{.bg-blue} CSS class that applies the color
+to the background.}
 
 \item{extra_css}{A named list of CSS definitions each containing a named list
 of CSS property-value pairs, i.e.
 colors.
 }
 \seealso{
-Other themes: \code{\link{style_duo_accent_inverse}},
-  \code{\link{style_duo_accent}},
-  \code{\link{style_mono_accent_inverse}},
-  \code{\link{style_mono_accent}},
-  \code{\link{style_mono_dark}},
-  \code{\link{style_mono_light}},
-  \code{\link{style_solarized_dark}},
-  \code{\link{style_solarized_light}},
-  \code{\link{style_xaringan}}
-
-Other Duotone themes: \code{\link{style_duo_accent_inverse}},
-  \code{\link{style_duo_accent}}
+Other themes: 
+\code{\link{style_duo_accent_inverse}()},
+\code{\link{style_duo_accent}()},
+\code{\link{style_mono_accent_inverse}()},
+\code{\link{style_mono_accent}()},
+\code{\link{style_mono_dark}()},
+\code{\link{style_mono_light}()},
+\code{\link{style_solarized_dark}()},
+\code{\link{style_solarized_light}()},
+\code{\link{style_xaringan}()}
+
+Other Duotone themes: 
+\code{\link{style_duo_accent_inverse}()},
+\code{\link{style_duo_accent}()}
 }
 \concept{Duotone themes}
 \concept{themes}

man/style_duo_accent.Rd

 \alias{style_duo_accent}
 \title{Duotone Accent Theme}
 \usage{
-style_duo_accent(primary_color = "#006747",
-  secondary_color = "#CFC493", white_color = "#FFFFFF",
-  black_color = "#000000", text_color = black_color,
-  header_color = primary_color, background_color = white_color,
-  link_color = choose_dark_or_light(secondary_color, primary_color,
-  secondary_color),
+style_duo_accent(
+  primary_color = "#006747",
+  secondary_color = "#CFC493",
+  white_color = "#FFFFFF",
+  black_color = "#000000",
+  text_color = black_color,
+  header_color = primary_color,
+  background_color = white_color,
+  link_color = choose_dark_or_light(secondary_color, primary_color, secondary_color),
   text_bold_color = choose_dark_or_light(secondary_color, primary_color,
-  secondary_color), text_slide_number_color = primary_color,
-  padding = "1rem 4rem 1rem 4rem", background_image = NULL,
-  background_size = NULL, background_position = NULL,
+    secondary_color),
+  text_slide_number_color = primary_color,
+  padding = "1rem 4rem 1rem 4rem",
+  background_image = NULL,
+  background_size = NULL,
+  background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
-  code_inline_color = choose_dark_or_light(secondary_color,
-  primary_color, secondary_color), code_inline_background_color = NULL,
+  code_inline_color = choose_dark_or_light(secondary_color, primary_color,
+    secondary_color),
+  code_inline_background_color = NULL,
   code_inline_font_size = "1em",
   inverse_background_color = secondary_color,
-  inverse_text_color = choose_dark_or_light(secondary_color, black_color,
-  white_color), inverse_text_shadow = FALSE,
-  inverse_header_color = choose_dark_or_light(secondary_color,
-  black_color, white_color),
-  title_slide_text_color = choose_dark_or_light(primary_color,
-  black_color, white_color),
+  inverse_text_color = choose_dark_or_light(secondary_color, black_color, white_color),
+  inverse_text_shadow = FALSE,
+  inverse_header_color = choose_dark_or_light(secondary_color, black_color, white_color),
+  title_slide_text_color = choose_dark_or_light(primary_color, black_color, white_color),
   title_slide_background_color = primary_color,
   title_slide_background_image = NULL,
   title_slide_background_size = NULL,
-  title_slide_background_position = NULL, footnote_color = NULL,
-  footnote_font_size = "0.9em", footnote_position_bottom = "3em",
+  title_slide_background_position = NULL,
+  footnote_color = NULL,
+  footnote_font_size = "0.9em",
+  footnote_position_bottom = "3em",
   left_column_subtle_color = apply_alpha(primary_color, 0.6),
   left_column_selected_color = primary_color,
   blockquote_left_border_color = apply_alpha(secondary_color, 0.5),
-  table_border_color = "#666", table_row_border_color = "#ddd",
+  table_border_color = "#666",
+  table_row_border_color = "#ddd",
   table_row_even_background_color = lighten_color(secondary_color, 0.3),
-  text_font_size = "20px", header_h1_font_size = "55px",
-  header_h2_font_size = "45px", header_h3_font_size = "35px",
+  text_font_size = "20px",
+  header_h1_font_size = "55px",
+  header_h2_font_size = "45px",
+  header_h3_font_size = "35px",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
-  header_background_ignore_classes = c("normal", "inverse", "title",
-  "middle", "bottom"), text_slide_number_font_size = "0.9em",
-  text_font_google = NULL, text_font_family = "'Droid Serif'",
+  header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
+  text_slide_number_font_size = "0.9em",
+  text_font_google = NULL,
+  text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
-  text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
-  text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
-  text_font_base = "serif", header_font_google = NULL,
+ 
+    text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
+ 
+    text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
+  text_font_base = "serif",
+  header_font_google = NULL,
   header_font_family = "'Yanone Kaffeesatz'",
   header_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
-  code_font_google = NULL, code_font_family = "'Source Code Pro'",
+  code_font_google = NULL,
+  code_font_family = "'Source Code Pro'",
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
-  extra_css = NULL, extra_fonts = NULL,
-  outfile = "xaringan-themer.css")
+  colors = NULL,
+  extra_css = NULL,
+  extra_fonts = NULL,
+  outfile = "xaringan-themer.css"
+)
 }
 \arguments{
 \item{primary_color}{Duotone Primary Color. Defaults to #006747. Modifies multiple CSS classes or elements.}
 
 \item{text_color}{Text Color. Defaults to \code{black_color}. Modifies the \code{body} element.}
 
-\item{header_color}{Header Color. Defaults to \code{primary_color}. Modifies the \code{h1, h2, h3} elements.}
+\item{header_color}{Header Color. Defaults to \code{primary_color}. Modifies the \verb{h1, h2, h3} elements.}
 
 \item{background_color}{Slide Background Color. Defaults to \code{white_color}. Modifies the \code{.remark-slide-content} class.}
 
-\item{link_color}{Link Color. Defaults to \code{choose_dark_or_light(secondary_color, primary_color, secondary_color)}. Modifies the \code{a, a > code} elements.}
+\item{link_color}{Link Color. Defaults to \code{choose_dark_or_light(secondary_color, primary_color, secondary_color)}. Modifies the \verb{a, a > code} elements.}
 
 \item{text_bold_color}{Bold Text Color. Defaults to \code{choose_dark_or_light(secondary_color, primary_color, secondary_color)}. Modifies the \code{strong} element.}
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to \code{primary_color}. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \code{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{inverse_text_shadow}{Enables Shadow on text of inverse slides. Defaults to \code{FALSE}. Modifies the \code{.inverse} class.}
 
-\item{inverse_header_color}{Inverse Header Color. Defaults to \code{choose_dark_or_light(secondary_color, black_color, white_color)}. Modifies the \code{.inverse h1, .inverse h2, .inverse h3} classes.}
+\item{inverse_header_color}{Inverse Header Color. Defaults to \code{choose_dark_or_light(secondary_color, black_color, white_color)}. Modifies the \verb{.inverse h1, .inverse h2, .inverse h3} classes.}
 
 \item{title_slide_text_color}{Title Slide Text Color. Defaults to \code{choose_dark_or_light(primary_color, black_color, white_color)}. Modifies the \code{.title-slide} class.}
 
 
 \item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
 
-\item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(primary_color, 0.6)}. Modifies the \code{.left-column h2, .left-column h3} classes.}
+\item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(primary_color, 0.6)}. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
-\item{left_column_selected_color}{Left Column Current Selection. Defaults to \code{primary_color}. Modifies the \code{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
+\item{left_column_selected_color}{Left Column Current Selection. Defaults to \code{primary_color}. Modifies the \verb{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
 
 \item{blockquote_left_border_color}{Blockquote Left Border Color. Defaults to \code{apply_alpha(secondary_color, 0.5)}. Modifies the \code{blockquote} element.}
 
-\item{table_border_color}{Table top/bottom border. Defaults to #666. Modifies the \code{table: border-top, border-bottom} elements.}
+\item{table_border_color}{Table top/bottom border. Defaults to #666. Modifies the \verb{table: border-top, border-bottom} elements.}
 
-\item{table_row_border_color}{Table row inner bottom border. Defaults to #ddd. Modifies the \code{table thead th: border-bottom} elements.}
+\item{table_row_border_color}{Table row inner bottom border. Defaults to #ddd. Modifies the \verb{table thead th: border-bottom} elements.}
 
-\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{lighten_color(secondary_color, 0.3)}. Modifies the \code{thead, tfoot, tr:nth-child(even)} elements.}
+\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{lighten_color(secondary_color, 0.3)}. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
 \item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \code{.remark-slide-content h2} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \code{.remark-slide-content h3} class.}
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
-\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \verb{.remark-slide-content h1} class.}
 
 \item{header_background_content_padding_top}{Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{text_font_weight}{Body Text Font Weight. Defaults to normal. Modifies the \code{body} element.}
 
-\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \code{@import url()} elements.}
+\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \verb{@import url()} elements.}
 
 \item{text_font_family_fallback}{Body Text Font Fallbacks. Defaults to 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'. Modifies the \code{body} element.}
 
 
 \item{header_font_google}{Use \code{google_font()} to specify header font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \code{@import url} elements.}
+\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \verb{@import url} elements.}
 
 \item{code_font_google}{Use \code{google_font()} to specify code font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
 \item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
 
-\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \code{@import url} elements.}
+\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 
-\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
+
+\item{colors}{A named vector of custom colors. The names of the colors
+become CSS variables and classes that can be used within your slides.
+For example, \code{colors = c(blue = "#bad4ed")} adds a CSS variable
+\code{--blue}, a \code{.blue} CSS class that applies the color to the text or
+foreground color, and a \code{.bg-blue} CSS class that applies the color
+to the background.}
 
 \item{extra_css}{A named list of CSS definitions each containing a named list
 of CSS property-value pairs, i.e.
 accents on select elements (headers, bold text, etc.).
 }
 \seealso{
-Other themes: \code{\link{style_duo_accent_inverse}},
-  \code{\link{style_duo}},
-  \code{\link{style_mono_accent_inverse}},
-  \code{\link{style_mono_accent}},
-  \code{\link{style_mono_dark}},
-  \code{\link{style_mono_light}},
-  \code{\link{style_solarized_dark}},
-  \code{\link{style_solarized_light}},
-  \code{\link{style_xaringan}}
-
-Other Duotone themes: \code{\link{style_duo_accent_inverse}},
-  \code{\link{style_duo}}
+Other themes: 
+\code{\link{style_duo_accent_inverse}()},
+\code{\link{style_duo}()},
+\code{\link{style_mono_accent_inverse}()},
+\code{\link{style_mono_accent}()},
+\code{\link{style_mono_dark}()},
+\code{\link{style_mono_light}()},
+\code{\link{style_solarized_dark}()},
+\code{\link{style_solarized_light}()},
+\code{\link{style_xaringan}()}
+
+Other Duotone themes: 
+\code{\link{style_duo_accent_inverse}()},
+\code{\link{style_duo}()}
 }
 \concept{Duotone themes}
 \concept{themes}

man/style_duo_accent_inverse.Rd

 \alias{style_duo_accent_inverse}
 \title{Duotone Accent Inverse Theme}
 \usage{
-style_duo_accent_inverse(primary_color = "#006747",
-  secondary_color = "#CFC493", white_color = "#FFFFFF",
-  black_color = "#000000", text_color = white_color,
-  header_color = primary_color, background_color = black_color,
-  link_color = choose_dark_or_light(secondary_color, secondary_color,
-  primary_color), text_bold_color = choose_dark_or_light(secondary_color,
-  secondary_color, primary_color),
+style_duo_accent_inverse(
+  primary_color = "#006747",
+  secondary_color = "#CFC493",
+  white_color = "#FFFFFF",
+  black_color = "#000000",
+  text_color = white_color,
+  header_color = primary_color,
+  background_color = black_color,
+  link_color = choose_dark_or_light(secondary_color, secondary_color, primary_color),
+  text_bold_color = choose_dark_or_light(secondary_color, secondary_color,
+    primary_color),
   text_slide_number_color = primary_color,
-  padding = "1rem 4rem 1rem 4rem", background_image = NULL,
-  background_size = NULL, background_position = NULL,
+  padding = "1rem 4rem 1rem 4rem",
+  background_image = NULL,
+  background_size = NULL,
+  background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
-  code_inline_color = choose_dark_or_light(secondary_color,
-  secondary_color, primary_color), code_inline_background_color = NULL,
+  code_inline_color = choose_dark_or_light(secondary_color, secondary_color,
+    primary_color),
+  code_inline_background_color = NULL,
   code_inline_font_size = "1em",
   inverse_background_color = secondary_color,
-  inverse_text_color = choose_dark_or_light(secondary_color, black_color,
-  white_color), inverse_text_shadow = FALSE,
-  inverse_header_color = choose_dark_or_light(secondary_color,
-  black_color, white_color),
-  title_slide_text_color = choose_dark_or_light(primary_color,
-  black_color, white_color),
+  inverse_text_color = choose_dark_or_light(secondary_color, black_color, white_color),
+  inverse_text_shadow = FALSE,
+  inverse_header_color = choose_dark_or_light(secondary_color, black_color, white_color),
+  title_slide_text_color = choose_dark_or_light(primary_color, black_color, white_color),
   title_slide_background_color = primary_color,
   title_slide_background_image = NULL,
   title_slide_background_size = NULL,
-  title_slide_background_position = NULL, footnote_color = NULL,
-  footnote_font_size = "0.9em", footnote_position_bottom = "3em",
+  title_slide_background_position = NULL,
+  footnote_color = NULL,
+  footnote_font_size = "0.9em",
+  footnote_position_bottom = "3em",
   left_column_subtle_color = apply_alpha(primary_color, 0.6),
   left_column_selected_color = primary_color,
   blockquote_left_border_color = apply_alpha(secondary_color, 0.5),
-  table_border_color = "#666", table_row_border_color = "#ddd",
+  table_border_color = "#666",
+  table_row_border_color = "#ddd",
   table_row_even_background_color = darken_color(choose_dark_or_light(primary_color,
-  secondary_color, primary_color), 0.3), text_font_size = "20px",
-  header_h1_font_size = "55px", header_h2_font_size = "45px",
-  header_h3_font_size = "35px", header_background_auto = FALSE,
+    secondary_color, primary_color), 0.3),
+  text_font_size = "20px",
+  header_h1_font_size = "55px",
+  header_h2_font_size = "45px",
+  header_h3_font_size = "35px",
+  header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
-  header_background_ignore_classes = c("normal", "inverse", "title",
-  "middle", "bottom"), text_slide_number_font_size = "0.9em",
-  text_font_google = NULL, text_font_family = "'Droid Serif'",
+  header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
+  text_slide_number_font_size = "0.9em",
+  text_font_google = NULL,
+  text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
-  text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
-  text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
-  text_font_base = "serif", header_font_google = NULL,
+ 
+    text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
+ 
+    text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
+  text_font_base = "serif",
+  header_font_google = NULL,
   header_font_family = "'Yanone Kaffeesatz'",
   header_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
-  code_font_google = NULL, code_font_family = "'Source Code Pro'",
+  code_font_google = NULL,
+  code_font_family = "'Source Code Pro'",
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
-  extra_css = NULL, extra_fonts = NULL,
-  outfile = "xaringan-themer.css")
+  colors = NULL,
+  extra_css = NULL,
+  extra_fonts = NULL,
+  outfile = "xaringan-themer.css"
+)
 }
 \arguments{
 \item{primary_color}{Duotone Primary Color. Defaults to #006747. Modifies multiple CSS classes or elements.}
 
 \item{text_color}{Text Color. Defaults to \code{white_color}. Modifies the \code{body} element.}
 
-\item{header_color}{Header Color. Defaults to \code{primary_color}. Modifies the \code{h1, h2, h3} elements.}
+\item{header_color}{Header Color. Defaults to \code{primary_color}. Modifies the \verb{h1, h2, h3} elements.}
 
 \item{background_color}{Slide Background Color. Defaults to \code{black_color}. Modifies the \code{.remark-slide-content} class.}
 
-\item{link_color}{Link Color. Defaults to \code{choose_dark_or_light(secondary_color, secondary_color, primary_color)}. Modifies the \code{a, a > code} elements.}
+\item{link_color}{Link Color. Defaults to \code{choose_dark_or_light(secondary_color, secondary_color, primary_color)}. Modifies the \verb{a, a > code} elements.}
 
 \item{text_bold_color}{Bold Text Color. Defaults to \code{choose_dark_or_light(secondary_color, secondary_color, primary_color)}. Modifies the \code{strong} element.}
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to \code{primary_color}. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \code{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{inverse_text_shadow}{Enables Shadow on text of inverse slides. Defaults to \code{FALSE}. Modifies the \code{.inverse} class.}
 
-\item{inverse_header_color}{Inverse Header Color. Defaults to \code{choose_dark_or_light(secondary_color, black_color, white_color)}. Modifies the \code{.inverse h1, .inverse h2, .inverse h3} classes.}
+\item{inverse_header_color}{Inverse Header Color. Defaults to \code{choose_dark_or_light(secondary_color, black_color, white_color)}. Modifies the \verb{.inverse h1, .inverse h2, .inverse h3} classes.}
 
 \item{title_slide_text_color}{Title Slide Text Color. Defaults to \code{choose_dark_or_light(primary_color, black_color, white_color)}. Modifies the \code{.title-slide} class.}
 
 
 \item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
 
-\item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(primary_color, 0.6)}. Modifies the \code{.left-column h2, .left-column h3} classes.}
+\item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(primary_color, 0.6)}. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
-\item{left_column_selected_color}{Left Column Current Selection. Defaults to \code{primary_color}. Modifies the \code{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
+\item{left_column_selected_color}{Left Column Current Selection. Defaults to \code{primary_color}. Modifies the \verb{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
 
 \item{blockquote_left_border_color}{Blockquote Left Border Color. Defaults to \code{apply_alpha(secondary_color, 0.5)}. Modifies the \code{blockquote} element.}
 
-\item{table_border_color}{Table top/bottom border. Defaults to #666. Modifies the \code{table: border-top, border-bottom} elements.}
+\item{table_border_color}{Table top/bottom border. Defaults to #666. Modifies the \verb{table: border-top, border-bottom} elements.}
 
-\item{table_row_border_color}{Table row inner bottom border. Defaults to #ddd. Modifies the \code{table thead th: border-bottom} elements.}
+\item{table_row_border_color}{Table row inner bottom border. Defaults to #ddd. Modifies the \verb{table thead th: border-bottom} elements.}
 
-\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{darken_color(choose_dark_or_light(primary_color, secondary_color, primary_color), 0.3)}. Modifies the \code{thead, tfoot, tr:nth-child(even)} elements.}
+\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{darken_color(choose_dark_or_light(primary_color, secondary_color, primary_color), 0.3)}. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
 \item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \code{.remark-slide-content h2} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \code{.remark-slide-content h3} class.}
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
-\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \verb{.remark-slide-content h1} class.}
 
 \item{header_background_content_padding_top}{Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{text_font_weight}{Body Text Font Weight. Defaults to normal. Modifies the \code{body} element.}
 
-\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \code{@import url()} elements.}
+\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \verb{@import url()} elements.}
 
 \item{text_font_family_fallback}{Body Text Font Fallbacks. Defaults to 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'. Modifies the \code{body} element.}
 
 
 \item{header_font_google}{Use \code{google_font()} to specify header font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \code{@import url} elements.}
+\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \verb{@import url} elements.}
 
 \item{code_font_google}{Use \code{google_font()} to specify code font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
 \item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
 
-\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \code{@import url} elements.}
+\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 
-\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
+
+\item{colors}{A named vector of custom colors. The names of the colors
+become CSS variables and classes that can be used within your slides.
+For example, \code{colors = c(blue = "#bad4ed")} adds a CSS variable
+\code{--blue}, a \code{.blue} CSS class that applies the color to the text or
+foreground color, and a \code{.bg-blue} CSS class that applies the color
+to the background.}
 
 \item{extra_css}{A named list of CSS definitions each containing a named list
 of CSS property-value pairs, i.e.
 for color accents on select elements (headers, bold text, etc.).
 }
 \seealso{
-Other themes: \code{\link{style_duo_accent}},
-  \code{\link{style_duo}},
-  \code{\link{style_mono_accent_inverse}},
-  \code{\link{style_mono_accent}},
-  \code{\link{style_mono_dark}},
-  \code{\link{style_mono_light}},
-  \code{\link{style_solarized_dark}},
-  \code{\link{style_solarized_light}},
-  \code{\link{style_xaringan}}
-
-Other Duotone themes: \code{\link{style_duo_accent}},
-  \code{\link{style_duo}}
+Other themes: 
+\code{\link{style_duo_accent}()},
+\code{\link{style_duo}()},
+\code{\link{style_mono_accent_inverse}()},
+\code{\link{style_mono_accent}()},
+\code{\link{style_mono_dark}()},
+\code{\link{style_mono_light}()},
+\code{\link{style_solarized_dark}()},
+\code{\link{style_solarized_light}()},
+\code{\link{style_xaringan}()}
+
+Other Duotone themes: 
+\code{\link{style_duo_accent}()},
+\code{\link{style_duo}()}
 }
 \concept{Duotone themes}
 \concept{themes}

man/style_mono_accent.Rd

 \alias{style_mono_accent}
 \title{Monotone Accent Theme}
 \usage{
-style_mono_accent(base_color = "#43418A", white_color = "#FFFFFF",
-  black_color = "#272822", text_color = black_color,
-  header_color = base_color, background_color = white_color,
-  link_color = base_color, text_bold_color = base_color,
+style_mono_accent(
+  base_color = "#43418A",
+  white_color = "#FFFFFF",
+  black_color = "#272822",
+  text_color = black_color,
+  header_color = base_color,
+  background_color = white_color,
+  link_color = base_color,
+  text_bold_color = base_color,
   text_slide_number_color = base_color,
-  padding = "1rem 4rem 1rem 4rem", background_image = NULL,
-  background_size = NULL, background_position = NULL,
+  padding = "1rem 4rem 1rem 4rem",
+  background_image = NULL,
+  background_size = NULL,
+  background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
-  code_inline_color = base_color, code_inline_background_color = NULL,
-  code_inline_font_size = "1em", inverse_background_color = base_color,
-  inverse_text_color = white_color, inverse_text_shadow = FALSE,
+  code_inline_color = base_color,
+  code_inline_background_color = NULL,
+  code_inline_font_size = "1em",
+  inverse_background_color = base_color,
+  inverse_text_color = white_color,
+  inverse_text_shadow = FALSE,
   inverse_header_color = white_color,
   title_slide_text_color = inverse_text_color,
   title_slide_background_color = inverse_background_color,
   title_slide_background_image = NULL,
   title_slide_background_size = NULL,
-  title_slide_background_position = NULL, footnote_color = NULL,
-  footnote_font_size = "0.9em", footnote_position_bottom = "3em",
+  title_slide_background_position = NULL,
+  footnote_color = NULL,
+  footnote_font_size = "0.9em",
+  footnote_position_bottom = "3em",
   left_column_subtle_color = apply_alpha(base_color, 0.6),
   left_column_selected_color = base_color,
   blockquote_left_border_color = apply_alpha(base_color, 0.5),
-  table_border_color = "#666", table_row_border_color = "#ddd",
+  table_border_color = "#666",
+  table_row_border_color = "#ddd",
   table_row_even_background_color = lighten_color(base_color, 0.7),
-  text_font_size = "20px", header_h1_font_size = "55px",
-  header_h2_font_size = "45px", header_h3_font_size = "35px",
+  text_font_size = "20px",
+  header_h1_font_size = "55px",
+  header_h2_font_size = "45px",
+  header_h3_font_size = "35px",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
-  header_background_ignore_classes = c("normal", "inverse", "title",
-  "middle", "bottom"), text_slide_number_font_size = "0.9em",
-  text_font_google = NULL, text_font_family = "'Droid Serif'",
+  header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
+  text_slide_number_font_size = "0.9em",
+  text_font_google = NULL,
+  text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
-  text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
-  text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
-  text_font_base = "serif", header_font_google = NULL,
+ 
+    text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
+ 
+    text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
+  text_font_base = "serif",
+  header_font_google = NULL,
   header_font_family = "'Yanone Kaffeesatz'",
   header_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
-  code_font_google = NULL, code_font_family = "'Source Code Pro'",
+  code_font_google = NULL,
+  code_font_family = "'Source Code Pro'",
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
-  extra_css = NULL, extra_fonts = NULL,
-  outfile = "xaringan-themer.css")
+  colors = NULL,
+  extra_css = NULL,
+  extra_fonts = NULL,
+  outfile = "xaringan-themer.css"
+)
 }
 \arguments{
 \item{base_color}{Monotone Base Color, works best with a strong color. Defaults to #43418A. Modifies multiple CSS classes or elements.}
 
 \item{text_color}{Text Color. Defaults to \code{black_color}. Modifies the \code{body} element.}
 
-\item{header_color}{Header Color. Defaults to \code{base_color}. Modifies the \code{h1, h2, h3} elements.}
+\item{header_color}{Header Color. Defaults to \code{base_color}. Modifies the \verb{h1, h2, h3} elements.}
 
 \item{background_color}{Slide Background Color. Defaults to \code{white_color}. Modifies the \code{.remark-slide-content} class.}
 
-\item{link_color}{Link Color. Defaults to \code{base_color}. Modifies the \code{a, a > code} elements.}
+\item{link_color}{Link Color. Defaults to \code{base_color}. Modifies the \verb{a, a > code} elements.}
 
 \item{text_bold_color}{Bold Text Color. Defaults to \code{base_color}. Modifies the \code{strong} element.}
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to \code{base_color}. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \code{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{inverse_text_shadow}{Enables Shadow on text of inverse slides. Defaults to \code{FALSE}. Modifies the \code{.inverse} class.}
 
-\item{inverse_header_color}{Inverse Header Color. Defaults to \code{white_color}. Modifies the \code{.inverse h1, .inverse h2, .inverse h3} classes.}
+\item{inverse_header_color}{Inverse Header Color. Defaults to \code{white_color}. Modifies the \verb{.inverse h1, .inverse h2, .inverse h3} classes.}
 
 \item{title_slide_text_color}{Title Slide Text Color. Defaults to \code{inverse_text_color}. Modifies the \code{.title-slide} class.}
 
 
 \item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
 
-\item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(base_color, 0.6)}. Modifies the \code{.left-column h2, .left-column h3} classes.}
+\item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(base_color, 0.6)}. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
-\item{left_column_selected_color}{Left Column Current Selection. Defaults to \code{base_color}. Modifies the \code{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
+\item{left_column_selected_color}{Left Column Current Selection. Defaults to \code{base_color}. Modifies the \verb{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
 
 \item{blockquote_left_border_color}{Blockquote Left Border Color. Defaults to \code{apply_alpha(base_color, 0.5)}. Modifies the \code{blockquote} element.}
 
-\item{table_border_color}{Table top/bottom border. Defaults to #666. Modifies the \code{table: border-top, border-bottom} elements.}
+\item{table_border_color}{Table top/bottom border. Defaults to #666. Modifies the \verb{table: border-top, border-bottom} elements.}
 
-\item{table_row_border_color}{Table row inner bottom border. Defaults to #ddd. Modifies the \code{table thead th: border-bottom} elements.}
+\item{table_row_border_color}{Table row inner bottom border. Defaults to #ddd. Modifies the \verb{table thead th: border-bottom} elements.}
 
-\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{lighten_color(base_color, 0.7)}. Modifies the \code{thead, tfoot, tr:nth-child(even)} elements.}
+\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{lighten_color(base_color, 0.7)}. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
 \item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \code{.remark-slide-content h2} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \code{.remark-slide-content h3} class.}
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
-\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \verb{.remark-slide-content h1} class.}
 
 \item{header_background_content_padding_top}{Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{text_font_weight}{Body Text Font Weight. Defaults to normal. Modifies the \code{body} element.}
 
-\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \code{@import url()} elements.}
+\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \verb{@import url()} elements.}
 
 \item{text_font_family_fallback}{Body Text Font Fallbacks. Defaults to 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'. Modifies the \code{body} element.}
 
 
 \item{header_font_google}{Use \code{google_font()} to specify header font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \code{@import url} elements.}
+\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \verb{@import url} elements.}
 
 \item{code_font_google}{Use \code{google_font()} to specify code font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
 \item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
 
-\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \code{@import url} elements.}
+\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 
-\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
+
+\item{colors}{A named vector of custom colors. The names of the colors
+become CSS variables and classes that can be used within your slides.
+For example, \code{colors = c(blue = "#bad4ed")} adds a CSS variable
+\code{--blue}, a \code{.blue} CSS class that applies the color to the text or
+foreground color, and a \code{.bg-blue} CSS class that applies the color
+to the background.}
 
 \item{extra_css}{A named list of CSS definitions each containing a named list
 of CSS property-value pairs, i.e.
 accents on select elements (headers, bold text, etc.).
 }
 \seealso{
-Other themes: \code{\link{style_duo_accent_inverse}},
-  \code{\link{style_duo_accent}}, \code{\link{style_duo}},
-  \code{\link{style_mono_accent_inverse}},
-  \code{\link{style_mono_dark}},
-  \code{\link{style_mono_light}},
-  \code{\link{style_solarized_dark}},
-  \code{\link{style_solarized_light}},
-  \code{\link{style_xaringan}}
-
-Other Monotone themes: \code{\link{style_mono_accent_inverse}},
-  \code{\link{style_mono_dark}},
-  \code{\link{style_mono_light}}
+Other themes: 
+\code{\link{style_duo_accent_inverse}()},
+\code{\link{style_duo_accent}()},
+\code{\link{style_duo}()},
+\code{\link{style_mono_accent_inverse}()},
+\code{\link{style_mono_dark}()},
+\code{\link{style_mono_light}()},
+\code{\link{style_solarized_dark}()},
+\code{\link{style_solarized_light}()},
+\code{\link{style_xaringan}()}
+
+Other Monotone themes: 
+\code{\link{style_mono_accent_inverse}()},
+\code{\link{style_mono_dark}()},
+\code{\link{style_mono_light}()}
 }
 \concept{Monotone themes}
 \concept{themes}

man/style_mono_accent_inverse.Rd

 \alias{style_mono_accent_inverse}
 \title{Monotone Accent Inverse Theme}
 \usage{
-style_mono_accent_inverse(base_color = "#3C989E",
-  white_color = "#FFFFFF", black_color = darken_color(base_color, 0.9),
-  text_color = white_color, header_color = base_color,
-  background_color = black_color, link_color = base_color,
-  text_bold_color = base_color, text_slide_number_color = base_color,
-  padding = "1rem 4rem 1rem 4rem", background_image = NULL,
-  background_size = NULL, background_position = NULL,
+style_mono_accent_inverse(
+  base_color = "#3C989E",
+  white_color = "#FFFFFF",
+  black_color = darken_color(base_color, 0.9),
+  text_color = white_color,
+  header_color = base_color,
+  background_color = black_color,
+  link_color = base_color,
+  text_bold_color = base_color,
+  text_slide_number_color = base_color,
+  padding = "1rem 4rem 1rem 4rem",
+  background_image = NULL,
+  background_size = NULL,
+  background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
-  code_inline_color = base_color, code_inline_background_color = NULL,
-  code_inline_font_size = "1em", inverse_background_color = base_color,
-  inverse_text_color = black_color, inverse_text_shadow = FALSE,
+  code_inline_color = base_color,
+  code_inline_background_color = NULL,
+  code_inline_font_size = "1em",
+  inverse_background_color = base_color,
+  inverse_text_color = black_color,
+  inverse_text_shadow = FALSE,
   inverse_header_color = black_color,
   title_slide_text_color = inverse_text_color,
   title_slide_background_color = inverse_background_color,
   title_slide_background_image = NULL,
   title_slide_background_size = NULL,
-  title_slide_background_position = NULL, footnote_color = NULL,
-  footnote_font_size = "0.9em", footnote_position_bottom = "3em",
+  title_slide_background_position = NULL,
+  footnote_color = NULL,
+  footnote_font_size = "0.9em",
+  footnote_position_bottom = "3em",
   left_column_subtle_color = apply_alpha(base_color, 0.6),
   left_column_selected_color = base_color,
   blockquote_left_border_color = apply_alpha(base_color, 0.5),
-  table_border_color = "#666", table_row_border_color = "#ddd",
+  table_border_color = "#666",
+  table_row_border_color = "#ddd",
   table_row_even_background_color = darken_color(base_color, 0.7),
-  text_font_size = "20px", header_h1_font_size = "55px",
-  header_h2_font_size = "45px", header_h3_font_size = "35px",
+  text_font_size = "20px",
+  header_h1_font_size = "55px",
+  header_h2_font_size = "45px",
+  header_h3_font_size = "35px",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
-  header_background_ignore_classes = c("normal", "inverse", "title",
-  "middle", "bottom"), text_slide_number_font_size = "0.9em",
-  text_font_google = NULL, text_font_family = "'Droid Serif'",
+  header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
+  text_slide_number_font_size = "0.9em",
+  text_font_google = NULL,
+  text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
-  text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
-  text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
-  text_font_base = "serif", header_font_google = NULL,
+ 
+    text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
+ 
+    text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
+  text_font_base = "serif",
+  header_font_google = NULL,
   header_font_family = "'Yanone Kaffeesatz'",
   header_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
-  code_font_google = NULL, code_font_family = "'Source Code Pro'",
+  code_font_google = NULL,
+  code_font_family = "'Source Code Pro'",
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
-  extra_css = NULL, extra_fonts = NULL,
-  outfile = "xaringan-themer.css")
+  colors = NULL,
+  extra_css = NULL,
+  extra_fonts = NULL,
+  outfile = "xaringan-themer.css"
+)
 }
 \arguments{
 \item{base_color}{Monotone Base Color, works best with a light color. Defaults to #3C989E. Modifies multiple CSS classes or elements.}
 
 \item{text_color}{Text Color. Defaults to \code{white_color}. Modifies the \code{body} element.}
 
-\item{header_color}{Header Color. Defaults to \code{base_color}. Modifies the \code{h1, h2, h3} elements.}
+\item{header_color}{Header Color. Defaults to \code{base_color}. Modifies the \verb{h1, h2, h3} elements.}
 
 \item{background_color}{Slide Background Color. Defaults to \code{black_color}. Modifies the \code{.remark-slide-content} class.}
 
-\item{link_color}{Link Color. Defaults to \code{base_color}. Modifies the \code{a, a > code} elements.}
+\item{link_color}{Link Color. Defaults to \code{base_color}. Modifies the \verb{a, a > code} elements.}
 
 \item{text_bold_color}{Bold Text Color. Defaults to \code{base_color}. Modifies the \code{strong} element.}
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to \code{base_color}. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \code{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{inverse_text_shadow}{Enables Shadow on text of inverse slides. Defaults to \code{FALSE}. Modifies the \code{.inverse} class.}
 
-\item{inverse_header_color}{Inverse Header Color. Defaults to \code{black_color}. Modifies the \code{.inverse h1, .inverse h2, .inverse h3} classes.}
+\item{inverse_header_color}{Inverse Header Color. Defaults to \code{black_color}. Modifies the \verb{.inverse h1, .inverse h2, .inverse h3} classes.}
 
 \item{title_slide_text_color}{Title Slide Text Color. Defaults to \code{inverse_text_color}. Modifies the \code{.title-slide} class.}
 
 
 \item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
 
-\item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(base_color, 0.6)}. Modifies the \code{.left-column h2, .left-column h3} classes.}
+\item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(base_color, 0.6)}. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
-\item{left_column_selected_color}{Left Column Current Selection. Defaults to \code{base_color}. Modifies the \code{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
+\item{left_column_selected_color}{Left Column Current Selection. Defaults to \code{base_color}. Modifies the \verb{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
 
 \item{blockquote_left_border_color}{Blockquote Left Border Color. Defaults to \code{apply_alpha(base_color, 0.5)}. Modifies the \code{blockquote} element.}
 
-\item{table_border_color}{Table top/bottom border. Defaults to #666. Modifies the \code{table: border-top, border-bottom} elements.}
+\item{table_border_color}{Table top/bottom border. Defaults to #666. Modifies the \verb{table: border-top, border-bottom} elements.}
 
-\item{table_row_border_color}{Table row inner bottom border. Defaults to #ddd. Modifies the \code{table thead th: border-bottom} elements.}
+\item{table_row_border_color}{Table row inner bottom border. Defaults to #ddd. Modifies the \verb{table thead th: border-bottom} elements.}
 
-\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{darken_color(base_color, 0.7)}. Modifies the \code{thead, tfoot, tr:nth-child(even)} elements.}
+\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{darken_color(base_color, 0.7)}. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
 \item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \code{.remark-slide-content h2} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \code{.remark-slide-content h3} class.}
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
-\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \verb{.remark-slide-content h1} class.}
 
 \item{header_background_content_padding_top}{Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{text_font_weight}{Body Text Font Weight. Defaults to normal. Modifies the \code{body} element.}
 
-\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \code{@import url()} elements.}
+\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \verb{@import url()} elements.}
 
 \item{text_font_family_fallback}{Body Text Font Fallbacks. Defaults to 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'. Modifies the \code{body} element.}
 
 
 \item{header_font_google}{Use \code{google_font()} to specify header font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \code{@import url} elements.}
+\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \verb{@import url} elements.}
 
 \item{code_font_google}{Use \code{google_font()} to specify code font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
 \item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
 
-\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \code{@import url} elements.}
+\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 
-\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
+
+\item{colors}{A named vector of custom colors. The names of the colors
+become CSS variables and classes that can be used within your slides.
+For example, \code{colors = c(blue = "#bad4ed")} adds a CSS variable
+\code{--blue}, a \code{.blue} CSS class that applies the color to the text or
+foreground color, and a \code{.bg-blue} CSS class that applies the color
+to the background.}
 
 \item{extra_css}{A named list of CSS definitions each containing a named list
 of CSS property-value pairs, i.e.
 for color accents on select elements (headers, bold text, etc.).
 }
 \seealso{
-Other themes: \code{\link{style_duo_accent_inverse}},
-  \code{\link{style_duo_accent}}, \code{\link{style_duo}},
-  \code{\link{style_mono_accent}},
-  \code{\link{style_mono_dark}},
-  \code{\link{style_mono_light}},
-  \code{\link{style_solarized_dark}},
-  \code{\link{style_solarized_light}},
-  \code{\link{style_xaringan}}
-
-Other Monotone themes: \code{\link{style_mono_accent}},
-  \code{\link{style_mono_dark}},
-  \code{\link{style_mono_light}}
+Other themes: 
+\code{\link{style_duo_accent_inverse}()},
+\code{\link{style_duo_accent}()},
+\code{\link{style_duo}()},
+\code{\link{style_mono_accent}()},
+\code{\link{style_mono_dark}()},
+\code{\link{style_mono_light}()},
+\code{\link{style_solarized_dark}()},
+\code{\link{style_solarized_light}()},
+\code{\link{style_xaringan}()}
+
+Other Monotone themes: 
+\code{\link{style_mono_accent}()},
+\code{\link{style_mono_dark}()},
+\code{\link{style_mono_light}()}
 }
 \concept{Monotone themes}
 \concept{themes}

man/style_mono_dark.Rd

 \alias{style_mono_dark}
 \title{Monotone Dark Theme}
 \usage{
-style_mono_dark(base_color = "#cbf7ed",
+style_mono_dark(
+  base_color = "#cbf7ed",
   white_color = lighten_color(base_color, 0.8),
   black_color = darken_color(base_color, 0.85),
-  text_color = white_color, header_color = base_color,
-  background_color = black_color, link_color = base_color,
-  text_bold_color = base_color, text_slide_number_color = base_color,
-  padding = "1rem 4rem 1rem 4rem", background_image = NULL,
-  background_size = NULL, background_position = NULL,
+  text_color = white_color,
+  header_color = base_color,
+  background_color = black_color,
+  link_color = base_color,
+  text_bold_color = base_color,
+  text_slide_number_color = base_color,
+  padding = "1rem 4rem 1rem 4rem",
+  background_image = NULL,
+  background_size = NULL,
+  background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
-  code_inline_color = base_color, code_inline_background_color = NULL,
-  code_inline_font_size = "1em", inverse_background_color = base_color,
-  inverse_text_color = black_color, inverse_text_shadow = FALSE,
+  code_inline_color = base_color,
+  code_inline_background_color = NULL,
+  code_inline_font_size = "1em",
+  inverse_background_color = base_color,
+  inverse_text_color = black_color,
+  inverse_text_shadow = FALSE,
   inverse_header_color = black_color,
   title_slide_text_color = inverse_text_color,
   title_slide_background_color = inverse_background_color,
   title_slide_background_image = NULL,
   title_slide_background_size = NULL,
-  title_slide_background_position = NULL, footnote_color = NULL,
-  footnote_font_size = "0.9em", footnote_position_bottom = "3em",
+  title_slide_background_position = NULL,
+  footnote_color = NULL,
+  footnote_font_size = "0.9em",
+  footnote_position_bottom = "3em",
   left_column_subtle_color = apply_alpha(base_color, 0.6),
   left_column_selected_color = base_color,
   blockquote_left_border_color = apply_alpha(base_color, 0.5),
-  table_border_color = "#666", table_row_border_color = "#ddd",
+  table_border_color = "#666",
+  table_row_border_color = "#ddd",
   table_row_even_background_color = darken_color(base_color, 0.7),
-  text_font_size = "20px", header_h1_font_size = "55px",
-  header_h2_font_size = "45px", header_h3_font_size = "35px",
+  text_font_size = "20px",
+  header_h1_font_size = "55px",
+  header_h2_font_size = "45px",
+  header_h3_font_size = "35px",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
-  header_background_ignore_classes = c("normal", "inverse", "title",
-  "middle", "bottom"), text_slide_number_font_size = "0.9em",
-  text_font_google = NULL, text_font_family = "'Droid Serif'",
+  header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
+  text_slide_number_font_size = "0.9em",
+  text_font_google = NULL,
+  text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
-  text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
-  text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
-  text_font_base = "serif", header_font_google = NULL,
+ 
+    text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
+ 
+    text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
+  text_font_base = "serif",
+  header_font_google = NULL,
   header_font_family = "'Yanone Kaffeesatz'",
   header_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
-  code_font_google = NULL, code_font_family = "'Source Code Pro'",
+  code_font_google = NULL,
+  code_font_family = "'Source Code Pro'",
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
-  extra_css = NULL, extra_fonts = NULL,
-  outfile = "xaringan-themer.css")
+  colors = NULL,
+  extra_css = NULL,
+  extra_fonts = NULL,
+  outfile = "xaringan-themer.css"
+)
 }
 \arguments{
 \item{base_color}{Monotone Base Color, works best with a light color.. Defaults to #cbf7ed. Modifies multiple CSS classes or elements.}
 
 \item{text_color}{Text Color. Defaults to \code{white_color}. Modifies the \code{body} element.}
 
-\item{header_color}{Header Color. Defaults to \code{base_color}. Modifies the \code{h1, h2, h3} elements.}
+\item{header_color}{Header Color. Defaults to \code{base_color}. Modifies the \verb{h1, h2, h3} elements.}
 
 \item{background_color}{Slide Background Color. Defaults to \code{black_color}. Modifies the \code{.remark-slide-content} class.}
 
-\item{link_color}{Link Color. Defaults to \code{base_color}. Modifies the \code{a, a > code} elements.}
+\item{link_color}{Link Color. Defaults to \code{base_color}. Modifies the \verb{a, a > code} elements.}
 
 \item{text_bold_color}{Bold Text Color. Defaults to \code{base_color}. Modifies the \code{strong} element.}
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to \code{base_color}. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \code{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{inverse_text_shadow}{Enables Shadow on text of inverse slides. Defaults to \code{FALSE}. Modifies the \code{.inverse} class.}
 
-\item{inverse_header_color}{Inverse Header Color. Defaults to \code{black_color}. Modifies the \code{.inverse h1, .inverse h2, .inverse h3} classes.}
+\item{inverse_header_color}{Inverse Header Color. Defaults to \code{black_color}. Modifies the \verb{.inverse h1, .inverse h2, .inverse h3} classes.}
 
 \item{title_slide_text_color}{Title Slide Text Color. Defaults to \code{inverse_text_color}. Modifies the \code{.title-slide} class.}
 
 
 \item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
 
-\item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(base_color, 0.6)}. Modifies the \code{.left-column h2, .left-column h3} classes.}
+\item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(base_color, 0.6)}. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
-\item{left_column_selected_color}{Left Column Current Selection. Defaults to \code{base_color}. Modifies the \code{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
+\item{left_column_selected_color}{Left Column Current Selection. Defaults to \code{base_color}. Modifies the \verb{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
 
 \item{blockquote_left_border_color}{Blockquote Left Border Color. Defaults to \code{apply_alpha(base_color, 0.5)}. Modifies the \code{blockquote} element.}
 
-\item{table_border_color}{Table top/bottom border. Defaults to #666. Modifies the \code{table: border-top, border-bottom} elements.}
+\item{table_border_color}{Table top/bottom border. Defaults to #666. Modifies the \verb{table: border-top, border-bottom} elements.}
 
-\item{table_row_border_color}{Table row inner bottom border. Defaults to #ddd. Modifies the \code{table thead th: border-bottom} elements.}
+\item{table_row_border_color}{Table row inner bottom border. Defaults to #ddd. Modifies the \verb{table thead th: border-bottom} elements.}
 
-\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{darken_color(base_color, 0.7)}. Modifies the \code{thead, tfoot, tr:nth-child(even)} elements.}
+\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{darken_color(base_color, 0.7)}. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
 \item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \code{.remark-slide-content h2} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \code{.remark-slide-content h3} class.}
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
-\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \verb{.remark-slide-content h1} class.}
 
 \item{header_background_content_padding_top}{Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{text_font_weight}{Body Text Font Weight. Defaults to normal. Modifies the \code{body} element.}
 
-\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \code{@import url()} elements.}
+\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \verb{@import url()} elements.}
 
 \item{text_font_family_fallback}{Body Text Font Fallbacks. Defaults to 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'. Modifies the \code{body} element.}
 
 
 \item{header_font_google}{Use \code{google_font()} to specify header font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \code{@import url} elements.}
+\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \verb{@import url} elements.}
 
 \item{code_font_google}{Use \code{google_font()} to specify code font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
 \item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
 
-\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \code{@import url} elements.}
+\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 
-\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
+
+\item{colors}{A named vector of custom colors. The names of the colors
+become CSS variables and classes that can be used within your slides.
+For example, \code{colors = c(blue = "#bad4ed")} adds a CSS variable
+\code{--blue}, a \code{.blue} CSS class that applies the color to the text or
+foreground color, and a \code{.bg-blue} CSS class that applies the color
+to the background.}
 
 \item{extra_css}{A named list of CSS definitions each containing a named list
 of CSS property-value pairs, i.e.
 A dark monotone theme based around a single color.
 }
 \seealso{
-Other themes: \code{\link{style_duo_accent_inverse}},
-  \code{\link{style_duo_accent}}, \code{\link{style_duo}},
-  \code{\link{style_mono_accent_inverse}},
-  \code{\link{style_mono_accent}},
-  \code{\link{style_mono_light}},
-  \code{\link{style_solarized_dark}},
-  \code{\link{style_solarized_light}},
-  \code{\link{style_xaringan}}
-
-Other Monotone themes: \code{\link{style_mono_accent_inverse}},
-  \code{\link{style_mono_accent}},
-  \code{\link{style_mono_light}}
+Other themes: 
+\code{\link{style_duo_accent_inverse}()},
+\code{\link{style_duo_accent}()},
+\code{\link{style_duo}()},
+\code{\link{style_mono_accent_inverse}()},
+\code{\link{style_mono_accent}()},
+\code{\link{style_mono_light}()},
+\code{\link{style_solarized_dark}()},
+\code{\link{style_solarized_light}()},
+\code{\link{style_xaringan}()}
+
+Other Monotone themes: 
+\code{\link{style_mono_accent_inverse}()},
+\code{\link{style_mono_accent}()},
+\code{\link{style_mono_light}()}
 }
 \concept{Monotone themes}
 \concept{themes}

man/style_mono_light.Rd

 \alias{style_mono_light}
 \title{Monotone Light Theme}
 \usage{
-style_mono_light(base_color = "#23395b",
+style_mono_light(
+  base_color = "#23395b",
   white_color = lighten_color(base_color, 0.9),
   black_color = darken_color(base_color, 0.3),
-  text_color = black_color, header_color = base_color,
-  background_color = white_color, link_color = base_color,
-  text_bold_color = base_color, text_slide_number_color = base_color,
-  padding = "1rem 4rem 1rem 4rem", background_image = NULL,
-  background_size = NULL, background_position = NULL,
+  text_color = black_color,
+  header_color = base_color,
+  background_color = white_color,
+  link_color = base_color,
+  text_bold_color = base_color,
+  text_slide_number_color = base_color,
+  padding = "1rem 4rem 1rem 4rem",
+  background_image = NULL,
+  background_size = NULL,
+  background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
-  code_inline_color = base_color, code_inline_background_color = NULL,
-  code_inline_font_size = "1em", inverse_background_color = base_color,
-  inverse_text_color = white_color, inverse_text_shadow = FALSE,
+  code_inline_color = base_color,
+  code_inline_background_color = NULL,
+  code_inline_font_size = "1em",
+  inverse_background_color = base_color,
+  inverse_text_color = white_color,
+  inverse_text_shadow = FALSE,
   inverse_header_color = white_color,
   title_slide_text_color = inverse_text_color,
   title_slide_background_color = inverse_background_color,
   title_slide_background_image = NULL,
   title_slide_background_size = NULL,
-  title_slide_background_position = NULL, footnote_color = NULL,
-  footnote_font_size = "0.9em", footnote_position_bottom = "3em",
+  title_slide_background_position = NULL,
+  footnote_color = NULL,
+  footnote_font_size = "0.9em",
+  footnote_position_bottom = "3em",
   left_column_subtle_color = apply_alpha(base_color, 0.6),
   left_column_selected_color = base_color,
   blockquote_left_border_color = apply_alpha(base_color, 0.5),
-  table_border_color = "#666", table_row_border_color = "#ddd",
+  table_border_color = "#666",
+  table_row_border_color = "#ddd",
   table_row_even_background_color = lighten_color(base_color, 0.8),
-  text_font_size = "20px", header_h1_font_size = "55px",
-  header_h2_font_size = "45px", header_h3_font_size = "35px",
+  text_font_size = "20px",
+  header_h1_font_size = "55px",
+  header_h2_font_size = "45px",
+  header_h3_font_size = "35px",
   header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
-  header_background_ignore_classes = c("normal", "inverse", "title",
-  "middle", "bottom"), text_slide_number_font_size = "0.9em",
-  text_font_google = NULL, text_font_family = "'Droid Serif'",
+  header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
+  text_slide_number_font_size = "0.9em",
+  text_font_google = NULL,
+  text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
-  text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
-  text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
-  text_font_base = "serif", header_font_google = NULL,
+ 
+    text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
+ 
+    text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
+  text_font_base = "serif",
+  header_font_google = NULL,
   header_font_family = "'Yanone Kaffeesatz'",
   header_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
-  code_font_google = NULL, code_font_family = "'Source Code Pro'",
+  code_font_google = NULL,
+  code_font_family = "'Source Code Pro'",
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
-  extra_css = NULL, extra_fonts = NULL,
-  outfile = "xaringan-themer.css")
+  colors = NULL,
+  extra_css = NULL,
+  extra_fonts = NULL,
+  outfile = "xaringan-themer.css"
+)
 }
 \arguments{
 \item{base_color}{Monotone base color, works best with a strong color. Defaults to #23395b. Modifies multiple CSS classes or elements.}
 
 \item{text_color}{Text Color. Defaults to \code{black_color}. Modifies the \code{body} element.}
 
-\item{header_color}{Header Color. Defaults to \code{base_color}. Modifies the \code{h1, h2, h3} elements.}
+\item{header_color}{Header Color. Defaults to \code{base_color}. Modifies the \verb{h1, h2, h3} elements.}
 
 \item{background_color}{Slide Background Color. Defaults to \code{white_color}. Modifies the \code{.remark-slide-content} class.}
 
-\item{link_color}{Link Color. Defaults to \code{base_color}. Modifies the \code{a, a > code} elements.}
+\item{link_color}{Link Color. Defaults to \code{base_color}. Modifies the \verb{a, a > code} elements.}
 
 \item{text_bold_color}{Bold Text Color. Defaults to \code{base_color}. Modifies the \code{strong} element.}
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to \code{base_color}. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \code{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{inverse_text_shadow}{Enables Shadow on text of inverse slides. Defaults to \code{FALSE}. Modifies the \code{.inverse} class.}
 
-\item{inverse_header_color}{Inverse Header Color. Defaults to \code{white_color}. Modifies the \code{.inverse h1, .inverse h2, .inverse h3} classes.}
+\item{inverse_header_color}{Inverse Header Color. Defaults to \code{white_color}. Modifies the \verb{.inverse h1, .inverse h2, .inverse h3} classes.}
 
 \item{title_slide_text_color}{Title Slide Text Color. Defaults to \code{inverse_text_color}. Modifies the \code{.title-slide} class.}
 
 
 \item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
 
-\item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(base_color, 0.6)}. Modifies the \code{.left-column h2, .left-column h3} classes.}
+\item{left_column_subtle_color}{Left Column Text (not last). Defaults to \code{apply_alpha(base_color, 0.6)}. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
-\item{left_column_selected_color}{Left Column Current Selection. Defaults to \code{base_color}. Modifies the \code{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
+\item{left_column_selected_color}{Left Column Current Selection. Defaults to \code{base_color}. Modifies the \verb{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
 
 \item{blockquote_left_border_color}{Blockquote Left Border Color. Defaults to \code{apply_alpha(base_color, 0.5)}. Modifies the \code{blockquote} element.}
 
-\item{table_border_color}{Table top/bottom border. Defaults to #666. Modifies the \code{table: border-top, border-bottom} elements.}
+\item{table_border_color}{Table top/bottom border. Defaults to #666. Modifies the \verb{table: border-top, border-bottom} elements.}
 
-\item{table_row_border_color}{Table row inner bottom border. Defaults to #ddd. Modifies the \code{table thead th: border-bottom} elements.}
+\item{table_row_border_color}{Table row inner bottom border. Defaults to #ddd. Modifies the \verb{table thead th: border-bottom} elements.}
 
-\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{lighten_color(base_color, 0.8)}. Modifies the \code{thead, tfoot, tr:nth-child(even)} elements.}
+\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to \code{lighten_color(base_color, 0.8)}. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
 \item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \code{.remark-slide-content h2} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \code{.remark-slide-content h3} class.}
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
-\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \verb{.remark-slide-content h1} class.}
 
 \item{header_background_content_padding_top}{Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{text_font_weight}{Body Text Font Weight. Defaults to normal. Modifies the \code{body} element.}
 
-\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \code{@import url()} elements.}
+\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \verb{@import url()} elements.}
 
 \item{text_font_family_fallback}{Body Text Font Fallbacks. Defaults to 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'. Modifies the \code{body} element.}
 
 
 \item{header_font_google}{Use \code{google_font()} to specify header font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \code{@import url} elements.}
+\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \verb{@import url} elements.}
 
 \item{code_font_google}{Use \code{google_font()} to specify code font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
 \item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
 
-\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \code{@import url} elements.}
+\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 
-\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
+
+\item{colors}{A named vector of custom colors. The names of the colors
+become CSS variables and classes that can be used within your slides.
+For example, \code{colors = c(blue = "#bad4ed")} adds a CSS variable
+\code{--blue}, a \code{.blue} CSS class that applies the color to the text or
+foreground color, and a \code{.bg-blue} CSS class that applies the color
+to the background.}
 
 \item{extra_css}{A named list of CSS definitions each containing a named list
 of CSS property-value pairs, i.e.
 A light monotone theme based around a single color.
 }
 \seealso{
-Other themes: \code{\link{style_duo_accent_inverse}},
-  \code{\link{style_duo_accent}}, \code{\link{style_duo}},
-  \code{\link{style_mono_accent_inverse}},
-  \code{\link{style_mono_accent}},
-  \code{\link{style_mono_dark}},
-  \code{\link{style_solarized_dark}},
-  \code{\link{style_solarized_light}},
-  \code{\link{style_xaringan}}
-
-Other Monotone themes: \code{\link{style_mono_accent_inverse}},
-  \code{\link{style_mono_accent}},
-  \code{\link{style_mono_dark}}
+Other themes: 
+\code{\link{style_duo_accent_inverse}()},
+\code{\link{style_duo_accent}()},
+\code{\link{style_duo}()},
+\code{\link{style_mono_accent_inverse}()},
+\code{\link{style_mono_accent}()},
+\code{\link{style_mono_dark}()},
+\code{\link{style_solarized_dark}()},
+\code{\link{style_solarized_light}()},
+\code{\link{style_xaringan}()}
+
+Other Monotone themes: 
+\code{\link{style_mono_accent_inverse}()},
+\code{\link{style_mono_accent}()},
+\code{\link{style_mono_dark}()}
 }
 \concept{Monotone themes}
 \concept{themes}

man/style_solarized_dark.Rd

 \alias{style_solarized_dark}
 \title{Solarized Dark Theme}
 \usage{
-style_solarized_dark(text_color = "#839496", header_color = "#dc322f",
-  background_color = "#002b36", link_color = "#b58900",
-  text_bold_color = "#d33682", text_slide_number_color = "#586e75",
-  padding = "1rem 4rem 1rem 4rem", background_image = NULL,
-  background_size = NULL, background_position = NULL,
-  code_highlight_color = "#268bd240", code_inline_color = "#6c71c4",
-  code_inline_background_color = NULL, code_inline_font_size = "1em",
-  inverse_background_color = "#fdf6e3", inverse_text_color = "#002b36",
+style_solarized_dark(
+  text_color = "#839496",
+  header_color = "#dc322f",
+  background_color = "#002b36",
+  link_color = "#b58900",
+  text_bold_color = "#d33682",
+  text_slide_number_color = "#586e75",
+  padding = "1rem 4rem 1rem 4rem",
+  background_image = NULL,
+  background_size = NULL,
+  background_position = NULL,
+  code_highlight_color = "#268bd240",
+  code_inline_color = "#6c71c4",
+  code_inline_background_color = NULL,
+  code_inline_font_size = "1em",
+  inverse_background_color = "#fdf6e3",
+  inverse_text_color = "#002b36",
   inverse_text_shadow = FALSE,
   inverse_header_color = inverse_text_color,
   title_slide_text_color = inverse_text_color,
   title_slide_background_color = inverse_background_color,
   title_slide_background_image = NULL,
   title_slide_background_size = NULL,
-  title_slide_background_position = NULL, footnote_color = NULL,
-  footnote_font_size = "0.9em", footnote_position_bottom = "3em",
+  title_slide_background_position = NULL,
+  footnote_color = NULL,
+  footnote_font_size = "0.9em",
+  footnote_position_bottom = "3em",
   left_column_subtle_color = "#586e75",
   left_column_selected_color = "#93a1a1",
   blockquote_left_border_color = "#cb4b16",
-  table_border_color = "#657b83", table_row_border_color = "#657b83",
-  table_row_even_background_color = "#073642", text_font_size = "20px",
-  header_h1_font_size = "55px", header_h2_font_size = "45px",
-  header_h3_font_size = "35px", header_background_auto = FALSE,
+  table_border_color = "#657b83",
+  table_row_border_color = "#657b83",
+  table_row_even_background_color = "#073642",
+  text_font_size = "20px",
+  header_h1_font_size = "55px",
+  header_h2_font_size = "45px",
+  header_h3_font_size = "35px",
+  header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
-  header_background_ignore_classes = c("normal", "inverse", "title",
-  "middle", "bottom"), text_slide_number_font_size = "0.9em",
-  text_font_google = NULL, text_font_family = "'Droid Serif'",
+  header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
+  text_slide_number_font_size = "0.9em",
+  text_font_google = NULL,
+  text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
-  text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
-  text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
-  text_font_base = "serif", header_font_google = NULL,
+ 
+    text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
+ 
+    text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
+  text_font_base = "serif",
+  header_font_google = NULL,
   header_font_family = "'Yanone Kaffeesatz'",
   header_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
-  code_font_google = NULL, code_font_family = "'Source Code Pro'",
+  code_font_google = NULL,
+  code_font_family = "'Source Code Pro'",
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
-  extra_css = NULL, extra_fonts = NULL,
-  outfile = "xaringan-themer.css")
+  colors = NULL,
+  extra_css = NULL,
+  extra_fonts = NULL,
+  outfile = "xaringan-themer.css"
+)
 }
 \arguments{
 \item{text_color}{Text Color. Defaults to #839496. Modifies the \code{body} element.}
 
-\item{header_color}{Header Color. Defaults to #dc322f. Modifies the \code{h1, h2, h3} elements.}
+\item{header_color}{Header Color. Defaults to #dc322f. Modifies the \verb{h1, h2, h3} elements.}
 
 \item{background_color}{Slide Background Color. Defaults to #002b36. Modifies the \code{.remark-slide-content} class.}
 
-\item{link_color}{Link Color. Defaults to #b58900. Modifies the \code{a, a > code} elements.}
+\item{link_color}{Link Color. Defaults to #b58900. Modifies the \verb{a, a > code} elements.}
 
 \item{text_bold_color}{Bold Text Color. Defaults to #d33682. Modifies the \code{strong} element.}
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to #586e75. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \code{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{inverse_text_shadow}{Enables Shadow on text of inverse slides. Defaults to \code{FALSE}. Modifies the \code{.inverse} class.}
 
-\item{inverse_header_color}{Inverse Header Color. Defaults to \code{inverse_text_color}. Modifies the \code{.inverse h1, .inverse h2, .inverse h3} classes.}
+\item{inverse_header_color}{Inverse Header Color. Defaults to \code{inverse_text_color}. Modifies the \verb{.inverse h1, .inverse h2, .inverse h3} classes.}
 
 \item{title_slide_text_color}{Title Slide Text Color. Defaults to \code{inverse_text_color}. Modifies the \code{.title-slide} class.}
 
 
 \item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
 
-\item{left_column_subtle_color}{Left Column Text (not last). Defaults to #586e75. Modifies the \code{.left-column h2, .left-column h3} classes.}
+\item{left_column_subtle_color}{Left Column Text (not last). Defaults to #586e75. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
-\item{left_column_selected_color}{Left Column Current Selection. Defaults to #93a1a1. Modifies the \code{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
+\item{left_column_selected_color}{Left Column Current Selection. Defaults to #93a1a1. Modifies the \verb{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
 
 \item{blockquote_left_border_color}{Blockquote Left Border Color. Defaults to #cb4b16. Modifies the \code{blockquote} element.}
 
-\item{table_border_color}{Table top/bottom border. Defaults to #657b83. Modifies the \code{table: border-top, border-bottom} elements.}
+\item{table_border_color}{Table top/bottom border. Defaults to #657b83. Modifies the \verb{table: border-top, border-bottom} elements.}
 
-\item{table_row_border_color}{Table row inner bottom border. Defaults to #657b83. Modifies the \code{table thead th: border-bottom} elements.}
+\item{table_row_border_color}{Table row inner bottom border. Defaults to #657b83. Modifies the \verb{table thead th: border-bottom} elements.}
 
-\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to #073642. Modifies the \code{thead, tfoot, tr:nth-child(even)} elements.}
+\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to #073642. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
 \item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \code{.remark-slide-content h2} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \code{.remark-slide-content h3} class.}
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
-\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \verb{.remark-slide-content h1} class.}
 
 \item{header_background_content_padding_top}{Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{text_font_weight}{Body Text Font Weight. Defaults to normal. Modifies the \code{body} element.}
 
-\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \code{@import url()} elements.}
+\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \verb{@import url()} elements.}
 
 \item{text_font_family_fallback}{Body Text Font Fallbacks. Defaults to 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'. Modifies the \code{body} element.}
 
 
 \item{header_font_google}{Use \code{google_font()} to specify header font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \code{@import url} elements.}
+\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \verb{@import url} elements.}
 
 \item{code_font_google}{Use \code{google_font()} to specify code font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
 \item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
 
-\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \code{@import url} elements.}
+\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 
-\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
+
+\item{colors}{A named vector of custom colors. The names of the colors
+become CSS variables and classes that can be used within your slides.
+For example, \code{colors = c(blue = "#bad4ed")} adds a CSS variable
+\code{--blue}, a \code{.blue} CSS class that applies the color to the text or
+foreground color, and a \code{.bg-blue} CSS class that applies the color
+to the background.}
 
 \item{extra_css}{A named list of CSS definitions each containing a named list
 of CSS property-value pairs, i.e.
 \url{http://ethanschoonover.com/solarized}
 }
 \seealso{
-Other themes: \code{\link{style_duo_accent_inverse}},
-  \code{\link{style_duo_accent}}, \code{\link{style_duo}},
-  \code{\link{style_mono_accent_inverse}},
-  \code{\link{style_mono_accent}},
-  \code{\link{style_mono_dark}},
-  \code{\link{style_mono_light}},
-  \code{\link{style_solarized_light}},
-  \code{\link{style_xaringan}}
-
-Other Solarized themes: \code{\link{style_solarized_light}}
+Other themes: 
+\code{\link{style_duo_accent_inverse}()},
+\code{\link{style_duo_accent}()},
+\code{\link{style_duo}()},
+\code{\link{style_mono_accent_inverse}()},
+\code{\link{style_mono_accent}()},
+\code{\link{style_mono_dark}()},
+\code{\link{style_mono_light}()},
+\code{\link{style_solarized_light}()},
+\code{\link{style_xaringan}()}
+
+Other Solarized themes: 
+\code{\link{style_solarized_light}()}
 }
 \concept{Solarized themes}
 \concept{themes}

man/style_solarized_light.Rd

 \alias{style_solarized_light}
 \title{Solarized Light Theme}
 \usage{
-style_solarized_light(text_color = "#657b83", header_color = "#dc322f",
-  background_color = "#fdf6e3", link_color = "#b58900",
-  text_bold_color = "#d33682", text_slide_number_color = "#93a1a1",
-  padding = "1rem 4rem 1rem 4rem", background_image = NULL,
-  background_size = NULL, background_position = NULL,
-  code_highlight_color = "#268bd240", code_inline_color = "#6c71c4",
-  code_inline_background_color = NULL, code_inline_font_size = "1em",
-  inverse_background_color = "#002b36", inverse_text_color = "#fdf6e3",
+style_solarized_light(
+  text_color = "#657b83",
+  header_color = "#dc322f",
+  background_color = "#fdf6e3",
+  link_color = "#b58900",
+  text_bold_color = "#d33682",
+  text_slide_number_color = "#93a1a1",
+  padding = "1rem 4rem 1rem 4rem",
+  background_image = NULL,
+  background_size = NULL,
+  background_position = NULL,
+  code_highlight_color = "#268bd240",
+  code_inline_color = "#6c71c4",
+  code_inline_background_color = NULL,
+  code_inline_font_size = "1em",
+  inverse_background_color = "#002b36",
+  inverse_text_color = "#fdf6e3",
   inverse_text_shadow = FALSE,
   inverse_header_color = inverse_text_color,
   title_slide_text_color = inverse_text_color,
   title_slide_background_color = inverse_background_color,
   title_slide_background_image = NULL,
   title_slide_background_size = NULL,
-  title_slide_background_position = NULL, footnote_color = NULL,
-  footnote_font_size = "0.9em", footnote_position_bottom = "3em",
+  title_slide_background_position = NULL,
+  footnote_color = NULL,
+  footnote_font_size = "0.9em",
+  footnote_position_bottom = "3em",
   left_column_subtle_color = "#93a1a1",
   left_column_selected_color = "#586e75",
   blockquote_left_border_color = "#cb4b16",
-  table_border_color = "#839496", table_row_border_color = "#839496",
-  table_row_even_background_color = "#eee8d5", text_font_size = "20px",
-  header_h1_font_size = "55px", header_h2_font_size = "45px",
-  header_h3_font_size = "35px", header_background_auto = FALSE,
+  table_border_color = "#839496",
+  table_row_border_color = "#839496",
+  table_row_even_background_color = "#eee8d5",
+  text_font_size = "20px",
+  header_h1_font_size = "55px",
+  header_h2_font_size = "45px",
+  header_h3_font_size = "35px",
+  header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
-  header_background_ignore_classes = c("normal", "inverse", "title",
-  "middle", "bottom"), text_slide_number_font_size = "0.9em",
-  text_font_google = NULL, text_font_family = "'Droid Serif'",
+  header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
+  text_slide_number_font_size = "0.9em",
+  text_font_google = NULL,
+  text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
-  text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
-  text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
-  text_font_base = "serif", header_font_google = NULL,
+ 
+    text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
+ 
+    text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
+  text_font_base = "serif",
+  header_font_google = NULL,
   header_font_family = "'Yanone Kaffeesatz'",
   header_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
-  code_font_google = NULL, code_font_family = "'Source Code Pro'",
+  code_font_google = NULL,
+  code_font_family = "'Source Code Pro'",
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
-  extra_css = NULL, extra_fonts = NULL,
-  outfile = "xaringan-themer.css")
+  colors = NULL,
+  extra_css = NULL,
+  extra_fonts = NULL,
+  outfile = "xaringan-themer.css"
+)
 }
 \arguments{
 \item{text_color}{Text Color. Defaults to #657b83. Modifies the \code{body} element.}
 
-\item{header_color}{Header Color. Defaults to #dc322f. Modifies the \code{h1, h2, h3} elements.}
+\item{header_color}{Header Color. Defaults to #dc322f. Modifies the \verb{h1, h2, h3} elements.}
 
 \item{background_color}{Slide Background Color. Defaults to #fdf6e3. Modifies the \code{.remark-slide-content} class.}
 
-\item{link_color}{Link Color. Defaults to #b58900. Modifies the \code{a, a > code} elements.}
+\item{link_color}{Link Color. Defaults to #b58900. Modifies the \verb{a, a > code} elements.}
 
 \item{text_bold_color}{Bold Text Color. Defaults to #d33682. Modifies the \code{strong} element.}
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to #93a1a1. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \code{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{inverse_text_shadow}{Enables Shadow on text of inverse slides. Defaults to \code{FALSE}. Modifies the \code{.inverse} class.}
 
-\item{inverse_header_color}{Inverse Header Color. Defaults to \code{inverse_text_color}. Modifies the \code{.inverse h1, .inverse h2, .inverse h3} classes.}
+\item{inverse_header_color}{Inverse Header Color. Defaults to \code{inverse_text_color}. Modifies the \verb{.inverse h1, .inverse h2, .inverse h3} classes.}
 
 \item{title_slide_text_color}{Title Slide Text Color. Defaults to \code{inverse_text_color}. Modifies the \code{.title-slide} class.}
 
 
 \item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
 
-\item{left_column_subtle_color}{Left Column Text (not last). Defaults to #93a1a1. Modifies the \code{.left-column h2, .left-column h3} classes.}
+\item{left_column_subtle_color}{Left Column Text (not last). Defaults to #93a1a1. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
-\item{left_column_selected_color}{Left Column Current Selection. Defaults to #586e75. Modifies the \code{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
+\item{left_column_selected_color}{Left Column Current Selection. Defaults to #586e75. Modifies the \verb{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
 
 \item{blockquote_left_border_color}{Blockquote Left Border Color. Defaults to #cb4b16. Modifies the \code{blockquote} element.}
 
-\item{table_border_color}{Table top/bottom border. Defaults to #839496. Modifies the \code{table: border-top, border-bottom} elements.}
+\item{table_border_color}{Table top/bottom border. Defaults to #839496. Modifies the \verb{table: border-top, border-bottom} elements.}
 
-\item{table_row_border_color}{Table row inner bottom border. Defaults to #839496. Modifies the \code{table thead th: border-bottom} elements.}
+\item{table_row_border_color}{Table row inner bottom border. Defaults to #839496. Modifies the \verb{table thead th: border-bottom} elements.}
 
-\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to #eee8d5. Modifies the \code{thead, tfoot, tr:nth-child(even)} elements.}
+\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to #eee8d5. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
 \item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \code{.remark-slide-content h2} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \code{.remark-slide-content h3} class.}
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
-\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \verb{.remark-slide-content h1} class.}
 
 \item{header_background_content_padding_top}{Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{text_font_weight}{Body Text Font Weight. Defaults to normal. Modifies the \code{body} element.}
 
-\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \code{@import url()} elements.}
+\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \verb{@import url()} elements.}
 
 \item{text_font_family_fallback}{Body Text Font Fallbacks. Defaults to 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'. Modifies the \code{body} element.}
 
 
 \item{header_font_google}{Use \code{google_font()} to specify header font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \code{@import url} elements.}
+\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \verb{@import url} elements.}
 
 \item{code_font_google}{Use \code{google_font()} to specify code font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
 \item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
 
-\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \code{@import url} elements.}
+\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 
-\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
+
+\item{colors}{A named vector of custom colors. The names of the colors
+become CSS variables and classes that can be used within your slides.
+For example, \code{colors = c(blue = "#bad4ed")} adds a CSS variable
+\code{--blue}, a \code{.blue} CSS class that applies the color to the text or
+foreground color, and a \code{.bg-blue} CSS class that applies the color
+to the background.}
 
 \item{extra_css}{A named list of CSS definitions each containing a named list
 of CSS property-value pairs, i.e.
 \url{http://ethanschoonover.com/solarized}
 }
 \seealso{
-Other themes: \code{\link{style_duo_accent_inverse}},
-  \code{\link{style_duo_accent}}, \code{\link{style_duo}},
-  \code{\link{style_mono_accent_inverse}},
-  \code{\link{style_mono_accent}},
-  \code{\link{style_mono_dark}},
-  \code{\link{style_mono_light}},
-  \code{\link{style_solarized_dark}},
-  \code{\link{style_xaringan}}
-
-Other Solarized themes: \code{\link{style_solarized_dark}}
+Other themes: 
+\code{\link{style_duo_accent_inverse}()},
+\code{\link{style_duo_accent}()},
+\code{\link{style_duo}()},
+\code{\link{style_mono_accent_inverse}()},
+\code{\link{style_mono_accent}()},
+\code{\link{style_mono_dark}()},
+\code{\link{style_mono_light}()},
+\code{\link{style_solarized_dark}()},
+\code{\link{style_xaringan}()}
+
+Other Solarized themes: 
+\code{\link{style_solarized_dark}()}
 }
 \concept{Solarized themes}
 \concept{themes}

man/style_xaringan.Rd

 \alias{style_xaringan}
 \title{Write A Customized Xaringan Theme}
 \usage{
-style_xaringan(text_color = "#000", header_color = "#000",
-  background_color = "#FFF", link_color = "rgb(249, 38, 114)",
+style_xaringan(
+  text_color = "#000",
+  header_color = "#000",
+  background_color = "#FFF",
+  link_color = "rgb(249, 38, 114)",
   text_bold_color = NULL,
   text_slide_number_color = inverse_background_color,
-  padding = "1rem 4rem 1rem 4rem", background_image = NULL,
-  background_size = NULL, background_position = NULL,
+  padding = "1rem 4rem 1rem 4rem",
+  background_image = NULL,
+  background_size = NULL,
+  background_position = NULL,
   code_highlight_color = "rgba(255,255,0,0.5)",
-  code_inline_color = "#000", code_inline_background_color = NULL,
-  code_inline_font_size = "1em", inverse_background_color = "#272822",
-  inverse_text_color = "#d6d6d6", inverse_text_shadow = FALSE,
+  code_inline_color = "#000",
+  code_inline_background_color = NULL,
+  code_inline_font_size = "1em",
+  inverse_background_color = "#272822",
+  inverse_text_color = "#d6d6d6",
+  inverse_text_shadow = FALSE,
   inverse_header_color = "#f3f3f3",
   title_slide_text_color = inverse_text_color,
   title_slide_background_color = inverse_background_color,
   title_slide_background_image = NULL,
   title_slide_background_size = NULL,
-  title_slide_background_position = NULL, footnote_color = NULL,
-  footnote_font_size = "0.9em", footnote_position_bottom = "3em",
+  title_slide_background_position = NULL,
+  footnote_color = NULL,
+  footnote_font_size = "0.9em",
+  footnote_position_bottom = "3em",
   left_column_subtle_color = "#777",
   left_column_selected_color = "#000",
   blockquote_left_border_color = "lightgray",
-  table_border_color = "#666", table_row_border_color = "#ddd",
-  table_row_even_background_color = "#eee", text_font_size = "20px",
-  header_h1_font_size = "55px", header_h2_font_size = "45px",
-  header_h3_font_size = "35px", header_background_auto = FALSE,
+  table_border_color = "#666",
+  table_row_border_color = "#ddd",
+  table_row_even_background_color = "#eee",
+  text_font_size = "20px",
+  header_h1_font_size = "55px",
+  header_h2_font_size = "45px",
+  header_h3_font_size = "35px",
+  header_background_auto = FALSE,
   header_background_color = header_color,
   header_background_text_color = background_color,
   header_background_padding = "2rem 4rem 1.5rem 4rem",
   header_background_content_padding_top = "7rem",
-  header_background_ignore_classes = c("normal", "inverse", "title",
-  "middle", "bottom"), text_slide_number_font_size = "0.9em",
-  text_font_google = NULL, text_font_family = "'Droid Serif'",
+  header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
+  text_slide_number_font_size = "0.9em",
+  text_font_google = NULL,
+  text_font_family = "'Droid Serif'",
   text_font_weight = "normal",
-  text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
-  text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
-  text_font_base = "serif", header_font_google = NULL,
+ 
+    text_font_url = "https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic",
+ 
+    text_font_family_fallback = "'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'",
+  text_font_base = "serif",
+  header_font_google = NULL,
   header_font_family = "'Yanone Kaffeesatz'",
   header_font_weight = "normal",
   header_font_url = "https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz",
-  code_font_google = NULL, code_font_family = "'Source Code Pro'",
+  code_font_google = NULL,
+  code_font_family = "'Source Code Pro'",
   code_font_size = "0.9em",
   code_font_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
   code_font_family_fallback = "'Lucida Console', Monaco",
-  extra_css = NULL, extra_fonts = NULL,
-  outfile = "xaringan-themer.css")
+  colors = NULL,
+  extra_css = NULL,
+  extra_fonts = NULL,
+  outfile = "xaringan-themer.css"
+)
 }
 \arguments{
 \item{text_color}{Text Color. Defaults to #000. Modifies the \code{body} element.}
 
-\item{header_color}{Header Color. Defaults to #000. Modifies the \code{h1, h2, h3} elements.}
+\item{header_color}{Header Color. Defaults to #000. Modifies the \verb{h1, h2, h3} elements.}
 
 \item{background_color}{Slide Background Color. Defaults to #FFF. Modifies the \code{.remark-slide-content} class.}
 
-\item{link_color}{Link Color. Defaults to rgb(249, 38, 114). Modifies the \code{a, a > code} elements.}
+\item{link_color}{Link Color. Defaults to rgb(249, 38, 114). Modifies the \verb{a, a > code} elements.}
 
 \item{text_bold_color}{Bold Text Color. Defaults to \code{NULL}. Modifies the \code{strong} element.}
 
 \item{text_slide_number_color}{Slide Number Color. Defaults to \code{inverse_background_color}. Modifies the \code{.remark-slide-number} class.}
 
-\item{padding}{Slide Padding in \code{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
+\item{padding}{Slide Padding in \verb{top right [bottom left]} format. Defaults to 1rem 4rem 1rem 4rem. Modifies the \code{.remark-slide-content} class.}
 
 \item{background_image}{Background image applied to each \emph{and every} slide. Set \code{title_slide_background_image = "none"} to remove the background image from the title slide. Defaults to \code{NULL}. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{inverse_text_shadow}{Enables Shadow on text of inverse slides. Defaults to \code{FALSE}. Modifies the \code{.inverse} class.}
 
-\item{inverse_header_color}{Inverse Header Color. Defaults to #f3f3f3. Modifies the \code{.inverse h1, .inverse h2, .inverse h3} classes.}
+\item{inverse_header_color}{Inverse Header Color. Defaults to #f3f3f3. Modifies the \verb{.inverse h1, .inverse h2, .inverse h3} classes.}
 
 \item{title_slide_text_color}{Title Slide Text Color. Defaults to \code{inverse_text_color}. Modifies the \code{.title-slide} class.}
 
 
 \item{footnote_position_bottom}{Footnote location from bottom of screen. Defaults to 3em. Modifies the \code{.footnote} class.}
 
-\item{left_column_subtle_color}{Left Column Text (not last). Defaults to #777. Modifies the \code{.left-column h2, .left-column h3} classes.}
+\item{left_column_subtle_color}{Left Column Text (not last). Defaults to #777. Modifies the \verb{.left-column h2, .left-column h3} classes.}
 
-\item{left_column_selected_color}{Left Column Current Selection. Defaults to #000. Modifies the \code{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
+\item{left_column_selected_color}{Left Column Current Selection. Defaults to #000. Modifies the \verb{.left-column h2:last-of-type, .left-column h3:last-child} classes.}
 
 \item{blockquote_left_border_color}{Blockquote Left Border Color. Defaults to lightgray. Modifies the \code{blockquote} element.}
 
-\item{table_border_color}{Table top/bottom border. Defaults to #666. Modifies the \code{table: border-top, border-bottom} elements.}
+\item{table_border_color}{Table top/bottom border. Defaults to #666. Modifies the \verb{table: border-top, border-bottom} elements.}
 
-\item{table_row_border_color}{Table row inner bottom border. Defaults to #ddd. Modifies the \code{table thead th: border-bottom} elements.}
+\item{table_row_border_color}{Table row inner bottom border. Defaults to #ddd. Modifies the \verb{table thead th: border-bottom} elements.}
 
-\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to #eee. Modifies the \code{thead, tfoot, tr:nth-child(even)} elements.}
+\item{table_row_even_background_color}{Table Even Row Background Color. Defaults to #eee. Modifies the \verb{thead, tfoot, tr:nth-child(even)} elements.}
 
 \item{text_font_size}{Slide Body Text Font Size. Defaults to 20px. Modifies the \code{.remark-slide-content} class.}
 
-\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_h1_font_size}{h1 Header Text Font Size. Defaults to 55px. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \code{.remark-slide-content h2} class.}
+\item{header_h2_font_size}{h2 Header Text Font Size. Defaults to 45px. Modifies the \verb{.remark-slide-content h2} class.}
 
-\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \code{.remark-slide-content h3} class.}
+\item{header_h3_font_size}{h3 Header Text Font Size. Defaults to 35px. Modifies the \verb{.remark-slide-content h3} class.}
 
 \item{header_background_auto}{Add background under slide title automatically for h1 header elements. If not enabled, use \code{class: header_background} to enable. Defaults to \code{FALSE}.}
 
-\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_color}{Background Color for h1 Header with Background. Defaults to \code{header_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_text_color}{Text Color for h1 Header with Background. Defaults to \code{background_color}. Modifies the \verb{.remark-slide-content h1} class.}
 
-\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \code{.remark-slide-content h1} class.}
+\item{header_background_padding}{Padding for h1 Header with Background. Defaults to 2rem 4rem 1.5rem 4rem. Modifies the \verb{.remark-slide-content h1} class.}
 
 \item{header_background_content_padding_top}{Top Padding for Content in Slide with Header with Background. Defaults to 7rem. Modifies the \code{.remark-slide-content} class.}
 
 
 \item{text_font_weight}{Body Text Font Weight. Defaults to normal. Modifies the \code{body} element.}
 
-\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \code{@import url()} elements.}
+\item{text_font_url}{Body Text Font URL(s). Defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic. Modifies the \verb{@import url()} elements.}
 
 \item{text_font_family_fallback}{Body Text Font Fallbacks. Defaults to 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'. Modifies the \code{body} element.}
 
 
 \item{header_font_google}{Use \code{google_font()} to specify header font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_family}{Header Font Family. Defaults to 'Yanone Kaffeesatz'. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \code{h1, h2, h3} elements.}
+\item{header_font_weight}{Header Font Weight. Defaults to normal. Modifies the \verb{h1, h2, h3} elements.}
 
-\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \code{@import url} elements.}
+\item{header_font_url}{Header Font URL. Defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz. Modifies the \verb{@import url} elements.}
 
 \item{code_font_google}{Use \code{google_font()} to specify code font. Defaults to \code{NULL}. Modifies the \code{body} element.}
 
-\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family}{Code Font Family. Defaults to 'Source Code Pro'. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
 
 \item{code_font_size}{Code Text Font Size. Defaults to 0.9em. Modifies the \code{.remark-inline} class.}
 
-\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \code{@import url} elements.}
+\item{code_font_url}{Code Font URL. Defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700. Modifies the \verb{@import url} elements.}
 
-\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \code{.remark-code, .remark-inline-code} classes.}
+\item{code_font_family_fallback}{Code Font Fallback. Defaults to 'Lucida Console', Monaco. Modifies the \verb{.remark-code, .remark-inline-code} classes.}
+
+\item{colors}{A named vector of custom colors. The names of the colors
+become CSS variables and classes that can be used within your slides.
+For example, \code{colors = c(blue = "#bad4ed")} adds a CSS variable
+\code{--blue}, a \code{.blue} CSS class that applies the color to the text or
+foreground color, and a \code{.bg-blue} CSS class that applies the color
+to the background.}
 
 \item{extra_css}{A named list of CSS definitions each containing a named list
 of CSS property-value pairs, i.e.
 Creates a customized Xaringan theme CSS file.
 }
 \seealso{
-Other themes: \code{\link{style_duo_accent_inverse}},
-  \code{\link{style_duo_accent}}, \code{\link{style_duo}},
-  \code{\link{style_mono_accent_inverse}},
-  \code{\link{style_mono_accent}},
-  \code{\link{style_mono_dark}},
-  \code{\link{style_mono_light}},
-  \code{\link{style_solarized_dark}},
-  \code{\link{style_solarized_light}}
+Other themes: 
+\code{\link{style_duo_accent_inverse}()},
+\code{\link{style_duo_accent}()},
+\code{\link{style_duo}()},
+\code{\link{style_mono_accent_inverse}()},
+\code{\link{style_mono_accent}()},
+\code{\link{style_mono_dark}()},
+\code{\link{style_mono_light}()},
+\code{\link{style_solarized_dark}()},
+\code{\link{style_solarized_light}()}
 }
 \concept{themes}

man/theme_xaringan.Rd

 \alias{theme_xaringan}
 \title{A Plot Theme for ggplot2 by xaringanthemer}
 \usage{
-theme_xaringan(text_color = NULL, background_color = NULL,
-  accent_color = NULL, accent_secondary_color = NULL, ...)
+theme_xaringan(
+  text_color = NULL,
+  background_color = NULL,
+  accent_color = NULL,
+  accent_secondary_color = NULL,
+  ...
+)
 }
 \arguments{
 \item{text_color}{Color for text and foreground, inherits from \code{text_color}}
 \item{accent_secondary_color}{Color for secondary accents, inherits from
 \code{text_bold_color}}
 
-\item{...}{Arguments passed on to \code{theme_xaringan_base}
-\describe{
-  \item{text_color}{Color for text and foreground}
-  \item{background_color}{Color for background}
-  \item{accent_color}{Color for titles and accents, inherits from
-\code{header_color} or \code{text_color}. Used for the \code{title} base setting in
-\code{\link[ggplot2:theme]{ggplot2::theme()}}, and additionally for setting the \code{color} or \code{fill} of
-\pkg{ggplot2} geom defaults.}
-  \item{accent_secondary_color}{Color for secondary accents, inherits from
-\code{text_bold_color} or \code{accent_color}. Used only when setting \pkg{ggplot2} geom
-defaults.}
-  \item{set_ggplot_defaults}{Should defaults be set for \pkg{ggplot2} \emph{geoms}?
+\item{...}{
+  Arguments passed on to \code{\link[=theme_xaringan_base]{theme_xaringan_base}}
+  \describe{
+    \item{\code{set_ggplot_defaults}}{Should defaults be set for \pkg{ggplot2} \emph{geoms}?
 Defaults to TRUE. To restore ggplot's defaults, or the previously set geom
 defaults, see \code{\link[=theme_xaringan_restore_defaults]{theme_xaringan_restore_defaults()}}.}
-  \item{text_font}{Font to use for text elements, passed to
+    \item{\code{text_font}}{Font to use for text elements, passed to
 \code{\link[sysfonts:font_add_google]{sysfonts::font_add_google()}}, if available and \code{text_font_use_google} is
 \code{TRUE}. Inherits from \code{text_font_family}.}
-  \item{text_font_use_google}{Is \code{text_font} available on \href{https://fonts.google.com}{Google Fonts}?}
-  \item{text_font_size}{Base text font size, inherits from \code{text_font_size}, or
+    \item{\code{text_font_use_google}}{Is \code{text_font} available on \href{https://fonts.google.com}{Google Fonts}?}
+    \item{\code{text_font_size}}{Base text font size, inherits from \code{text_font_size}, or
 defaults to 11.}
-  \item{title_font}{Font to use for title elements, passed to
+    \item{\code{title_font}}{Font to use for title elements, passed to
 \code{\link[sysfonts:font_add_google]{sysfonts::font_add_google()}}, if available and \code{title_font_use_google} is
 \code{TRUE}. Inherits from \code{title_font_family}.}
-  \item{title_font_use_google}{Is \code{title_font} available on \href{https://fonts.google.com}{Google Fonts}?}
-  \item{title_font_size}{Base text font size, inherits from \code{title_font_size},
+    \item{\code{title_font_use_google}}{Is \code{title_font} available on \href{https://fonts.google.com}{Google Fonts}?}
+    \item{\code{title_font_size}}{Base text font size, inherits from \code{title_font_size},
 or defaults to 14.}
-}}
+  }}
 }
 \value{
 A ggplot2 theme
 }
 }
 \seealso{
-Other xaringanthemer ggplot2 themes: \code{\link{theme_xaringan_base}},
-  \code{\link{theme_xaringan_inverse}},
-  \code{\link{theme_xaringan_set_defaults}}
+Other xaringanthemer ggplot2 themes: 
+\code{\link{theme_xaringan_base}()},
+\code{\link{theme_xaringan_inverse}()},
+\code{\link{theme_xaringan_set_defaults}()}
 }
 \concept{xaringanthemer ggplot2 themes}

man/theme_xaringan_base.Rd

 \alias{theme_xaringan_base}
 \title{The ggplot2 xaringanthemer base plot theme}
 \usage{
-theme_xaringan_base(text_color, background_color, ...,
-  set_ggplot_defaults = TRUE, accent_color = NULL,
-  accent_secondary_color = NULL, text_font = NULL,
-  text_font_use_google = NULL, text_font_size = NULL,
-  title_font = NULL, title_font_use_google = NULL,
-  title_font_size = NULL)
+theme_xaringan_base(
+  text_color,
+  background_color,
+  ...,
+  set_ggplot_defaults = TRUE,
+  accent_color = NULL,
+  accent_secondary_color = NULL,
+  text_font = NULL,
+  text_font_use_google = NULL,
+  text_font_size = NULL,
+  title_font = NULL,
+  title_font_use_google = NULL,
+  title_font_size = NULL
+)
 }
 \arguments{
 \item{text_color}{Color for text and foreground}
 }
 }
 \seealso{
-Other xaringanthemer ggplot2 themes: \code{\link{theme_xaringan_inverse}},
-  \code{\link{theme_xaringan_set_defaults}},
-  \code{\link{theme_xaringan}}
+Other xaringanthemer ggplot2 themes: 
+\code{\link{theme_xaringan_inverse}()},
+\code{\link{theme_xaringan_set_defaults}()},
+\code{\link{theme_xaringan}()}
 }
 \concept{xaringanthemer ggplot2 themes}

man/theme_xaringan_inverse.Rd

 \alias{theme_xaringan_inverse}
 \title{An Inverse Plot Theme for ggplot2 by xaringanthemer}
 \usage{
-theme_xaringan_inverse(text_color = NULL, background_color = NULL,
-  accent_color = NULL, accent_secondary_color = NULL, ...)
+theme_xaringan_inverse(
+  text_color = NULL,
+  background_color = NULL,
+  accent_color = NULL,
+  accent_secondary_color = NULL,
+  ...
+)
 }
 \arguments{
 \item{text_color}{Color for text and foreground, inherits from \code{text_color}}
 \item{accent_secondary_color}{Color for secondary accents, inherits from
 \code{text_bold_color}}
 
-\item{...}{Arguments passed on to \code{theme_xaringan_base}
-\describe{
-  \item{text_color}{Color for text and foreground}
-  \item{background_color}{Color for background}
-  \item{accent_color}{Color for titles and accents, inherits from
-\code{header_color} or \code{text_color}. Used for the \code{title} base setting in
-\code{\link[ggplot2:theme]{ggplot2::theme()}}, and additionally for setting the \code{color} or \code{fill} of
-\pkg{ggplot2} geom defaults.}
-  \item{accent_secondary_color}{Color for secondary accents, inherits from
-\code{text_bold_color} or \code{accent_color}. Used only when setting \pkg{ggplot2} geom
-defaults.}
-  \item{set_ggplot_defaults}{Should defaults be set for \pkg{ggplot2} \emph{geoms}?
+\item{...}{
+  Arguments passed on to \code{\link[=theme_xaringan_base]{theme_xaringan_base}}
+  \describe{
+    \item{\code{set_ggplot_defaults}}{Should defaults be set for \pkg{ggplot2} \emph{geoms}?
 Defaults to TRUE. To restore ggplot's defaults, or the previously set geom
 defaults, see \code{\link[=theme_xaringan_restore_defaults]{theme_xaringan_restore_defaults()}}.}
-  \item{text_font}{Font to use for text elements, passed to
+    \item{\code{text_font}}{Font to use for text elements, passed to
 \code{\link[sysfonts:font_add_google]{sysfonts::font_add_google()}}, if available and \code{text_font_use_google} is
 \code{TRUE}. Inherits from \code{text_font_family}.}
-  \item{text_font_use_google}{Is \code{text_font} available on \href{https://fonts.google.com}{Google Fonts}?}
-  \item{text_font_size}{Base text font size, inherits from \code{text_font_size}, or
+    \item{\code{text_font_use_google}}{Is \code{text_font} available on \href{https://fonts.google.com}{Google Fonts}?}
+    \item{\code{text_font_size}}{Base text font size, inherits from \code{text_font_size}, or
 defaults to 11.}
-  \item{title_font}{Font to use for title elements, passed to
+    \item{\code{title_font}}{Font to use for title elements, passed to
 \code{\link[sysfonts:font_add_google]{sysfonts::font_add_google()}}, if available and \code{title_font_use_google} is
 \code{TRUE}. Inherits from \code{title_font_family}.}
-  \item{title_font_use_google}{Is \code{title_font} available on \href{https://fonts.google.com}{Google Fonts}?}
-  \item{title_font_size}{Base text font size, inherits from \code{title_font_size},
+    \item{\code{title_font_use_google}}{Is \code{title_font} available on \href{https://fonts.google.com}{Google Fonts}?}
+    \item{\code{title_font_size}}{Base text font size, inherits from \code{title_font_size},
 or defaults to 14.}
-}}
+  }}
 }
 \value{
 A ggplot2 theme
 }
 }
 \seealso{
-Other xaringanthemer ggplot2 themes: \code{\link{theme_xaringan_base}},
-  \code{\link{theme_xaringan_set_defaults}},
-  \code{\link{theme_xaringan}}
+Other xaringanthemer ggplot2 themes: 
+\code{\link{theme_xaringan_base}()},
+\code{\link{theme_xaringan_set_defaults}()},
+\code{\link{theme_xaringan}()}
 }
 \concept{xaringanthemer ggplot2 themes}

man/theme_xaringan_set_defaults.Rd

 \alias{theme_xaringan_restore_defaults}
 \title{Set and Restore ggplot2 geom Defaults}
 \usage{
-theme_xaringan_set_defaults(text_color = NULL, background_color = NULL,
-  accent_color = text_color, accent_secondary_color = accent_color,
-  text_font = NULL)
+theme_xaringan_set_defaults(
+  text_color = NULL,
+  background_color = NULL,
+  accent_color = text_color,
+  accent_secondary_color = accent_color,
+  text_font = NULL
+)
 
 theme_xaringan_restore_defaults()
 }
 }}
 
 \seealso{
-Other xaringanthemer ggplot2 themes: \code{\link{theme_xaringan_base}},
-  \code{\link{theme_xaringan_inverse}},
-  \code{\link{theme_xaringan}}
+Other xaringanthemer ggplot2 themes: 
+\code{\link{theme_xaringan_base}()},
+\code{\link{theme_xaringan_inverse}()},
+\code{\link{theme_xaringan}()}
 }
 \concept{xaringanthemer ggplot2 themes}

tests/testthat/css/duo-header_bg.css

     left: 0 !important;
   }
 }
+

tests/testthat/css/duo.css

     left: 0 !important;
   }
 }
+

tests/testthat/css/duo_accent.css

     left: 0 !important;
   }
 }
+

tests/testthat/css/duo_accent_inverse.css

     left: 0 !important;
   }
 }
+

tests/testthat/css/mono_accent.css

     left: 0 !important;
   }
 }
+

tests/testthat/css/mono_accent_inverse.css

     left: 0 !important;
   }
 }
+

tests/testthat/css/mono_dark.css

     left: 0 !important;
   }
 }
+

tests/testthat/css/mono_light-header_bg.css

     left: 0 !important;
   }
 }
+

tests/testthat/css/mono_light.css

     left: 0 !important;
   }
 }
+

tests/testthat/css/solarized_dark-header_bg.css

     left: 0 !important;
   }
 }
+

tests/testthat/css/solarized_dark.css

     left: 0 !important;
   }
 }
+

tests/testthat/css/solarized_light.css

     left: 0 !important;
   }
 }
+

tests/testthat/css/xaringan.css

+/* -------------------------------------------------------
+ *
+ *     !! This file was generated by xaringanthemer !!
+ *
+ *  Changes made to this file directly will be overwritten
+ *  if you used xaringanthemer in your xaringan slides Rmd
+ *
+ *  Issues or likes?
+ *    - https://github.com/gadenbuie/xaringanthemer
+ *    - https://www.garrickadenbuie.com
+ *
+ *  Need help? Try:
+ *    - vignette(package = "xaringanthemer")
+ *    - ?xaringanthemer::write_xaringan_theme
+ *    - xaringan wiki: https://github.com/yihui/xaringan/wiki
+ *    - remarkjs wiki: https://github.com/gnab/remark/wiki
+ *
+ *  Version: a.b.c.d.eeee
+ *
+ * ------------------------------------------------------- */
+@import url(https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic);
+@import url(https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz);
+@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700);
+
+
+:root {
+  /* Fonts */
+  --body-font-family: 'Droid Serif', 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC', serif;
+  --header-font-family: 'Yanone Kaffeesatz';
+  --code-font-family: 'Source Code Pro';
+  --text-font-size: 20px;
+  --code-font-size: 0.9em;
+  --code-inline-font-size: 1em;
+  --header-h1-font-size: 55px;
+  --header-h2-font-size: 45px;
+  --header-h3-font-size: 35px;
+
+  /* Colors */
+  --text-color: #000;
+  --header-color: #000;
+  --background-color: #FFF;
+  --link-color: rgb(249, 38, 114);
+  --code-highlight-color: rgba(255,255,0,0.5);
+  --inverse-text-color: #d6d6d6;
+  --inverse-background-color: #272822;
+  --inverse-header-color: #f3f3f3;
+  --title-slide-background-color: #272822;
+  --title-slide-text-color: #d6d6d6;
+  --light-blue: #bad4ed;
+
+}
+
+html {
+  font-size: var(--text-font-size);
+}
+
+body {
+  font-family: var(--body-font-family);
+  font-weight: normal;
+  color: var(--text-color);
+}
+h1, h2, h3 {
+  font-family: var(--header-font-family);
+  font-weight: normal;
+  color: var(--header-color);
+}
+.remark-slide-content {
+  background-color: var(--background-color);
+  font-size: var(--text-font-size);
+  padding: 1rem 4rem 1rem 4rem;
+}
+.remark-slide-content h1 {
+  font-size: var(--header-h1-font-size);
+}
+.remark-slide-content h2 {
+  font-size: var(--header-h2-font-size);
+}
+.remark-slide-content h3 {
+  font-size: var(--header-h3-font-size);
+}
+.remark-code, .remark-inline-code {
+  font-family: var(--code-font-family), 'Lucida Console', Monaco, monospace;
+}
+.remark-code {
+  font-size: var(--code-font-size);
+}
+.remark-inline-code {
+  font-size: var(--code-inline-font-size);
+  color: #000;
+}
+.remark-slide-number {
+  color: #272822;
+  opacity: 1;
+  font-size: 0.9em;
+}
+a, a > code {
+  color: var(--link-color);
+  text-decoration: none;
+}
+.footnote {
+  position: absolute;
+  bottom: 3em;
+  padding-right: 4em;
+  font-size: 0.9em;
+}
+.remark-code-line-highlighted {
+  background-color: var(--code-highlight-color);
+}
+.inverse {
+  background-color: var(--inverse-background-color);
+  color: var(--inverse-text-color);
+  
+}
+.inverse h1, .inverse h2, .inverse h3 {
+  color: var(--inverse-header-color);
+}
+.title-slide, .title-slide h1, .title-slide h2, .title-slide h3 {
+  color: var(--title-slide-text-color);
+}
+.title-slide {
+  background-color: var(--title-slide-background-color);
+}
+.title-slide .remark-slide-number {
+  display: none;
+}
+/* Two-column layout */
+.left-column {
+  width: 20%;
+  height: 92%;
+  float: left;
+}
+.left-column h2, .left-column h3 {
+  color: #777;
+}
+.left-column h2:last-of-type, .left-column h3:last-child {
+  color: #000;
+}
+.right-column {
+  width: 75%;
+  float: right;
+  padding-top: 1em;
+}
+.pull-left {
+  float: left;
+  width: 47%;
+}
+.pull-right {
+  float: right;
+  width: 47%;
+}
+.pull-right ~ * {
+  clear: both;
+}
+img, video, iframe {
+  max-width: 100%;
+}
+blockquote {
+  border-left: solid 5px lightgray;
+  padding-left: 1em;
+}
+.remark-slide table {
+  margin: auto;
+  border-top: 1px solid #666;
+  border-bottom: 1px solid #666;
+}
+.remark-slide table thead th {
+  border-bottom: 1px solid #ddd;
+}
+th, td {
+  padding: 5px;
+}
+.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) {
+  background: #eee;
+}
+table.dataTable tbody {
+  background-color: var(--background-color);
+  color: var(--text-color);
+}
+table.dataTable.display tbody tr.odd {
+  background-color: var(--background-color);
+}
+table.dataTable.display tbody tr.even {
+  background-color: #eee;
+}
+table.dataTable.hover tbody tr:hover, table.dataTable.display tbody tr:hover {
+  background-color: rgba(255, 255, 255, 0.5);
+}
+.dataTables_wrapper .dataTables_length, .dataTables_wrapper .dataTables_filter, .dataTables_wrapper .dataTables_info, .dataTables_wrapper .dataTables_processing, .dataTables_wrapper .dataTables_paginate {
+  color: var(--text-color);
+}
+.dataTables_wrapper .dataTables_paginate .paginate_button {
+  color: var(--text-color) !important;
+}
+
+/* Slide Header Background for h1 elements */
+.remark-slide-content.header_background > h1 {
+  display: block;
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  background: var(--background-color);
+  color: var(--text-color);
+  padding: 2rem 4rem 1.5rem 4rem;
+  margin-top: 0;
+  box-sizing: border-box;
+}
+.remark-slide-content.header_background {
+  padding-top: 7rem;
+}
+
+@page { margin: 0; }
+@media print {
+  .remark-slide-scaler {
+    width: 100% !important;
+    height: 100% !important;
+    transform: scale(1) !important;
+    top: 0 !important;
+    left: 0 !important;
+  }
+}
+
+.light-blue {
+  color: var(--light-blue);
+}
+.bg-light-blue {
+  background-color: var(--light-blue);
+}

tests/testthat/test-color.R

+# test_that()
+
+describe("prepare_colors()", {
+  it("returns NULL if NULL or missing", {
+    expect_null(prepare_colors())
+    expect_null(prepare_colors(NULL))
+    expect_null(prepare_colors(list()))
+  })
+
+  it("requires a named vector or list", {
+    expect_error(prepare_colors("#00FF00"))
+  })
+
+  it("requires valid CSS names", {
+    expect_error(prepare_colors(c("light blue" = "#88f")))
+    expect_error(preapre_colors(c("light/blue" = "#88f")))
+  })
+
+  it("returns list with color_name and value for each color", {
+    colors <- c('test' = "#4ed4ed")
+    prepared <- prepare_colors(colors)
+    expect_equal(names(prepared[[1]]), c("color_name", "value"))
+    expect_equal(prepared[[1]]$color_name, names(colors)[[1]])
+    expect_equal(prepared[[1]]$value, colors[[1]])
+  })
+})

tests/testthat/test-themes.R

     "mono_light" = style_mono_light,
     "solarized_dark" = style_solarized_dark,
     "solarized_light" = style_solarized_light,
+    "xaringan" = style_xaringan,
     stop("Unknown theme")
   )
 
   test_theme_file("mono_light", "mono_light-header_bg.css", header_background_auto = TRUE)
   test_theme_file("solarized_dark", "solarized_dark-header_bg.css", header_background_auto = TRUE)
 })
+
+test_that("style colors are added to themes", {
+  test_theme_file("xaringan", colors = c('light-blue' = "#bad4ed"))
+})