Add duotone themes

NAMESPACE

 export(apply_alpha)
 export(choose_dark_or_light)
 export(darken_color)
-export(duo_theme)
+export(duo)
+export(duo_accent)
+export(duo_accent_inverse)
 export(google_font)
 export(google_language_codes)
 export(lighten_color)

R/duo.R

+#' @param primary_color Duotone Primary Color, defaults to #1F4257
+#' @param secondary_color Duotone Secondary Color, defaults to #F97B64
+#' @param text_color Text Color, defaults to `choose_dark_or_light(primary_color, darken_color(primary_color, 0.9), lighten_color(secondary_color, 0.99))`
+#' @param header_color Header Color, defaults to `secondary_color`
+#' @param background_color Slide Background Color, defaults to `primary_color`
+#' @param link_color Link Color, defaults to `secondary_color`
+#' @param text_bold_color Bold Text Color, defaults to `secondary_color`
+#' @param text_slide_number_color Slide Number Color, defaults to `text_color`
+#' @param code_highlight_color Code Line Highlight, defaults to rgba(255,255,0,0.5)
+#' @param code_inline_color Inline Code Color, defaults to `secondary_color`
+#' @param code_inline_background_color Inline Code Background Color, defaults to NA
+#' @param inverse_background_color Inverse Background Color, defaults to `secondary_color`
+#' @param inverse_text_color Inverse Text Color, defaults to `primary_color`
+#' @param inverse_text_shadow Enables Shadow on text of inverse slides, defaults to `FALSE`
+#' @param inverse_header_color Inverse Header Color, defaults to `primary_color`
+#' @param title_slide_text_color Title Slide Text Color, defaults to `secondary_color`
+#' @param title_slide_background_color Title Slide Background Color, defaults to `primary_color`
+#' @param title_slide_background_image Title Slide Background Image URL, defaults to NA
+#' @param left_column_subtle_color Left Column Text (not last), defaults to `apply_alpha(secondary_color, 0.6)`
+#' @param left_column_selected_color Left Column Current Selection, defaults to `secondary_color`
+#' @param blockquote_left_color Blockquote Left Border Color, defaults to `apply_alpha(secondary_color, 0.5)`
+#' @param table_border_color Table top/bottom border, defaults to #666
+#' @param table_row_border_color Table row inner bottom border, defaults to #ddd
+#' @param table_row_even_background_color Table Even Row Background Color, defaults to `lighten_color(primary_color, 0.3)`
+#' @param text_font_google Use `google_font()` to specify body font, defaults to `NULL`
+#' @param text_font_family Body Text Font Family, defaults to 'Droid Serif'
+#' @param text_font_weight Body Text Font Weight, defaults to normal
+#' @param text_font_url Body Text Font URL(s), defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic
+#' @param text_font_family_fallback Body Text Font Fallbacks, defaults to 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'
+#' @param text_font_base Body Text Base Font (Total Failure Fallback), defaults to serif
+#' @param header_font_google Use `google_font()` to specify header font, defaults to `NULL`
+#' @param header_font_family Header Font Family, defaults to 'Yanone Kaffeesatz'
+#' @param header_font_weight Header Font Weight, defaults to normal
+#' @param header_font_url Header Font URL, defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz
+#' @param code_font_google Use `google_font()` to specify code font, defaults to `NULL`
+#' @param code_font_family Code Font Family, defaults to 'Source Code Pro'
+#' @param code_font_url Code Font URL, defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700
+#' @param code_font_family_fallback Code Font Fallback, defaults to 'Lucida Console', Monaco
+#' @param outfile Customized xaringan CSS output file name
+#' @template duo
+#' @family Duotone themes
+#' @export
+duo <- function(
+  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,
+  code_highlight_color = "rgba(255,255,0,0.5)",
+  code_inline_color = secondary_color,
+  code_inline_background_color = NA,
+  inverse_background_color = secondary_color,
+  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 = NA,
+  left_column_subtle_color = apply_alpha(secondary_color, 0.6),
+  left_column_selected_color = secondary_color,
+  blockquote_left_color = apply_alpha(secondary_color, 0.5),
+  table_border_color = "#666",
+  table_row_border_color = "#ddd",
+  table_row_even_background_color = lighten_color(primary_color, 0.3),
+  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,
+  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_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
+  code_font_family_fallback = "'Lucida Console', Monaco",
+  outfile = "xaringan-themed.css"
+) {
+  # DO NOT EDIT - Generated from inst/scripts/generate_theme_functions.R
+  eval(parse(text = call_write_xaringan_theme()))
+}

R/duo_accent.R

+#' @param primary_color Duotone Primary Color, defaults to #006747
+#' @param secondary_color Duotone Secondary Color, defaults to #CFC493
+#' @param white_color Brightest color used, defaults to #FFFFFF
+#' @param black_color Darkest color used, defaults to #000000
+#' @param text_color Text Color, defaults to `black_color`
+#' @param header_color Header Color, defaults to `primary_color`
+#' @param background_color Slide Background Color, defaults to `white_color`
+#' @param link_color Link Color, defaults to `choose_dark_or_light(secondary_color, primary_color, secondary_color)`
+#' @param text_bold_color Bold Text Color, defaults to `choose_dark_or_light(secondary_color, primary_color, secondary_color)`
+#' @param text_slide_number_color Slide Number Color, defaults to `primary_color`
+#' @param code_highlight_color Code Line Highlight, defaults to rgba(255,255,0,0.5)
+#' @param code_inline_color Inline Code Color, defaults to `choose_dark_or_light(secondary_color, primary_color, secondary_color)`
+#' @param code_inline_background_color Inline Code Background Color, defaults to NA
+#' @param inverse_background_color Inverse Background Color, defaults to `secondary_color`
+#' @param inverse_text_color Inverse Text Color, defaults to `choose_dark_or_light(secondary_color, black_color, white_color)`
+#' @param inverse_text_shadow Enables Shadow on text of inverse slides, defaults to `FALSE`
+#' @param inverse_header_color Inverse Header Color, defaults to `choose_dark_or_light(secondary_color, black_color, white_color)`
+#' @param title_slide_text_color Title Slide Text Color, defaults to `choose_dark_or_light(primary_color, black_color, white_color)`
+#' @param title_slide_background_color Title Slide Background Color, defaults to `primary_color`
+#' @param title_slide_background_image Title Slide Background Image URL, defaults to NA
+#' @param left_column_subtle_color Left Column Text (not last), defaults to `apply_alpha(primary_color, 0.6)`
+#' @param left_column_selected_color Left Column Current Selection, defaults to `primary_color`
+#' @param blockquote_left_color Blockquote Left Border Color, defaults to `apply_alpha(secondary_color, 0.5)`
+#' @param table_border_color Table top/bottom border, defaults to #666
+#' @param table_row_border_color Table row inner bottom border, defaults to #ddd
+#' @param table_row_even_background_color Table Even Row Background Color, defaults to `lighten_color(secondary_color, 0.3)`
+#' @param text_font_google Use `google_font()` to specify body font, defaults to `NULL`
+#' @param text_font_family Body Text Font Family, defaults to 'Droid Serif'
+#' @param text_font_weight Body Text Font Weight, defaults to normal
+#' @param text_font_url Body Text Font URL(s), defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic
+#' @param text_font_family_fallback Body Text Font Fallbacks, defaults to 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'
+#' @param text_font_base Body Text Base Font (Total Failure Fallback), defaults to serif
+#' @param header_font_google Use `google_font()` to specify header font, defaults to `NULL`
+#' @param header_font_family Header Font Family, defaults to 'Yanone Kaffeesatz'
+#' @param header_font_weight Header Font Weight, defaults to normal
+#' @param header_font_url Header Font URL, defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz
+#' @param code_font_google Use `google_font()` to specify code font, defaults to `NULL`
+#' @param code_font_family Code Font Family, defaults to 'Source Code Pro'
+#' @param code_font_url Code Font URL, defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700
+#' @param code_font_family_fallback Code Font Fallback, defaults to 'Lucida Console', Monaco
+#' @param outfile Customized xaringan CSS output file name
+#' @template duo_accent
+#' @family Duotone themes
+#' @export
+duo_accent <- function(
+  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,
+  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 = NA,
+  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),
+  title_slide_background_color = primary_color,
+  title_slide_background_image = NA,
+  left_column_subtle_color = apply_alpha(primary_color, 0.6),
+  left_column_selected_color = primary_color,
+  blockquote_left_color = apply_alpha(secondary_color, 0.5),
+  table_border_color = "#666",
+  table_row_border_color = "#ddd",
+  table_row_even_background_color = lighten_color(secondary_color, 0.3),
+  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,
+  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_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
+  code_font_family_fallback = "'Lucida Console', Monaco",
+  outfile = "xaringan-themed.css"
+) {
+  # DO NOT EDIT - Generated from inst/scripts/generate_theme_functions.R
+  eval(parse(text = call_write_xaringan_theme()))
+}

R/duo_accent_inverse.R

+#' @param primary_color Duotone Primary Color, defaults to #006747
+#' @param secondary_color Duotone Secondary Color, defaults to #CFC493
+#' @param white_color Brightest color used, defaults to #FFFFFF
+#' @param black_color Darkest color used, defaults to #000000
+#' @param text_color Text Color, defaults to `white_color`
+#' @param header_color Header Color, defaults to `primary_color`
+#' @param background_color Slide Background Color, defaults to `black_color`
+#' @param link_color Link Color, defaults to `choose_dark_or_light(secondary_color, primary_color, secondary_color)`
+#' @param text_bold_color Bold Text Color, defaults to `choose_dark_or_light(secondary_color, primary_color, secondary_color)`
+#' @param text_slide_number_color Slide Number Color, defaults to `primary_color`
+#' @param code_highlight_color Code Line Highlight, defaults to rgba(255,255,0,0.5)
+#' @param code_inline_color Inline Code Color, defaults to `choose_dark_or_light(secondary_color, primary_color, secondary_color)`
+#' @param code_inline_background_color Inline Code Background Color, defaults to NA
+#' @param inverse_background_color Inverse Background Color, defaults to `secondary_color`
+#' @param inverse_text_color Inverse Text Color, defaults to `choose_dark_or_light(secondary_color, black_color, white_color)`
+#' @param inverse_text_shadow Enables Shadow on text of inverse slides, defaults to `FALSE`
+#' @param inverse_header_color Inverse Header Color, defaults to `choose_dark_or_light(secondary_color, black_color, white_color)`
+#' @param title_slide_text_color Title Slide Text Color, defaults to `choose_dark_or_light(primary_color, black_color, white_color)`
+#' @param title_slide_background_color Title Slide Background Color, defaults to `primary_color`
+#' @param title_slide_background_image Title Slide Background Image URL, defaults to NA
+#' @param left_column_subtle_color Left Column Text (not last), defaults to `apply_alpha(primary_color, 0.6)`
+#' @param left_column_selected_color Left Column Current Selection, defaults to `primary_color`
+#' @param blockquote_left_color Blockquote Left Border Color, defaults to `apply_alpha(secondary_color, 0.5)`
+#' @param table_border_color Table top/bottom border, defaults to #666
+#' @param table_row_border_color Table row inner bottom border, defaults to #ddd
+#' @param table_row_even_background_color Table Even Row Background Color, defaults to `darken_color(choose_dark_or_light(primary_color, secondary_color, primary_color), 0.3)`
+#' @param text_font_google Use `google_font()` to specify body font, defaults to `NULL`
+#' @param text_font_family Body Text Font Family, defaults to 'Droid Serif'
+#' @param text_font_weight Body Text Font Weight, defaults to normal
+#' @param text_font_url Body Text Font URL(s), defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic
+#' @param text_font_family_fallback Body Text Font Fallbacks, defaults to 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'
+#' @param text_font_base Body Text Base Font (Total Failure Fallback), defaults to serif
+#' @param header_font_google Use `google_font()` to specify header font, defaults to `NULL`
+#' @param header_font_family Header Font Family, defaults to 'Yanone Kaffeesatz'
+#' @param header_font_weight Header Font Weight, defaults to normal
+#' @param header_font_url Header Font URL, defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz
+#' @param code_font_google Use `google_font()` to specify code font, defaults to `NULL`
+#' @param code_font_family Code Font Family, defaults to 'Source Code Pro'
+#' @param code_font_url Code Font URL, defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700
+#' @param code_font_family_fallback Code Font Fallback, defaults to 'Lucida Console', Monaco
+#' @param outfile Customized xaringan CSS output file name
+#' @template duo_accent_inverse
+#' @family Duotone themes
+#' @export
+duo_accent_inverse <- function(
+  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, primary_color, secondary_color),
+  text_bold_color = choose_dark_or_light(secondary_color, primary_color, secondary_color),
+  text_slide_number_color = primary_color,
+  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 = NA,
+  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),
+  title_slide_background_color = primary_color,
+  title_slide_background_image = NA,
+  left_column_subtle_color = apply_alpha(primary_color, 0.6),
+  left_column_selected_color = primary_color,
+  blockquote_left_color = apply_alpha(secondary_color, 0.5),
+  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_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,
+  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_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
+  code_font_family_fallback = "'Lucida Console', Monaco",
+  outfile = "xaringan-themed.css"
+) {
+  # DO NOT EDIT - Generated from inst/scripts/generate_theme_functions.R
+  eval(parse(text = call_write_xaringan_theme()))
+}

R/theme_settings.R

   left_column_selected_color      = "{base_color}",
   blockquote_left_color           = "{apply_alpha(base_color, 0.5)}",
   table_row_even_background_color = "{darken_color(base_color, 0.7)}")
+
+template_duo_light <- tibble::tribble(
+  ~ variable, ~ default, ~ element, ~ description
+  , "primary_color", "#1F4257", "mutliple", "Duotone Secondary Color"
+  , "secondary_color", "#F97B64", "multiple", "Duotone Primary Color"
+  , "white_color", "{lighten_color(primary_color, 0.99)}", "multiple", "Brightest color used, default is a very light version of `primary_color`"
+  , "black_color", "{darken_color(secondary_color, 0.9)}", "multiple", "Darkest color used, default is a very dark version of `secondary_color`"
+)
+template_duo_light <- do.call('rbind', list(template_duo_light, template_variables))
+template_duo_light <- set_default(
+  template_duo_light,
+  text_color                      = "{black_color}",
+  header_color                    = "{primary_color}",
+  background_color                = "{white_color}",
+  link_color                      = "{secondary_color}",
+  text_bold_color                 = "{secondary_color}",
+  text_slide_number_color         = "{primary_color}",
+  code_inline_color               = "{secondary_color}",
+  inverse_background_color        = "{primary_color}",
+  inverse_text_color              = "{secondary_color}",
+  inverse_header_color            = "{secondary_color}",
+  left_column_subtle_color        = "{apply_alpha(secondary_color, 0.6)}",
+  left_column_selected_color      = "{secondary_color}",
+  blockquote_left_color           = "{apply_alpha(secondary_color, 0.5)}",
+  table_row_even_background_color = "{lighten_color(secondary_color, 0.7)}")
+
+template_duo <- tibble::tribble(
+  ~ variable, ~ default, ~ element, ~ description
+  , "primary_color", "#1F4257", "mutliple", "Duotone Primary Color"
+  , "secondary_color", "#F97B64", "multiple", "Duotone Secondary Color"
+)
+template_duo <- do.call('rbind', list(template_duo, template_variables))
+template_duo <- set_default(
+  template_duo,
+  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}",
+  code_inline_color               = "{secondary_color}",
+  inverse_background_color        = "{secondary_color}",
+  inverse_text_color              = "{primary_color}",
+  inverse_header_color            = "{primary_color}",
+  title_slide_text_color          = "{secondary_color}",
+  title_slide_background_color    = "{primary_color}",
+  left_column_subtle_color        = "{apply_alpha(secondary_color, 0.6)}",
+  left_column_selected_color      = "{secondary_color}",
+  blockquote_left_color           = "{apply_alpha(secondary_color, 0.5)}",
+  table_row_even_background_color = "{lighten_color(primary_color, 0.3)}")
+
+template_duo_accent <- tibble::tribble(
+  ~ variable, ~ default, ~ element, ~ description
+  , "primary_color", "#006747", "mutliple", "Duotone Primary Color"
+  , "secondary_color", "#CFC493", "multiple", "Duotone Secondary Color"
+  , "white_color", "#FFFFFF", "multiple", "Brightest color used"
+  , "black_color", "#000000", "multiple", "Darkest color used"
+)
+template_duo_accent <- do.call('rbind', list(template_duo_accent, template_variables))
+template_duo_accent <- set_default(
+  template_duo_accent,
+  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}",
+  code_inline_color               = "{choose_dark_or_light(secondary_color, primary_color, secondary_color)}",
+  inverse_background_color        = "{secondary_color}",
+  inverse_text_color              = "{choose_dark_or_light(secondary_color, black_color, white_color)}",
+  inverse_header_color            = "{choose_dark_or_light(secondary_color, black_color, white_color)}",
+  title_slide_background_color    = "{primary_color}",
+  title_slide_text_color          = "{choose_dark_or_light(primary_color, black_color, white_color)}",
+  left_column_subtle_color        = "{apply_alpha(primary_color, 0.6)}",
+  left_column_selected_color      = "{primary_color}",
+  blockquote_left_color           = "{apply_alpha(secondary_color, 0.5)}",
+  table_row_even_background_color = "{lighten_color(secondary_color, 0.3)}")
+
+template_duo_accent_inverse <- set_default(
+  template_duo_accent,
+  text_color                      = "{white_color}",
+  header_color                    = "{primary_color}",
+  background_color                = "{black_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}",
+  code_inline_color               = "{choose_dark_or_light(secondary_color, primary_color, secondary_color)}",
+  inverse_background_color        = "{secondary_color}",
+  inverse_text_color              = "{choose_dark_or_light(secondary_color, black_color, white_color)}",
+  inverse_header_color            = "{choose_dark_or_light(secondary_color, black_color, white_color)}",
+  title_slide_background_color    = "{primary_color}",
+  title_slide_text_color          = "{choose_dark_or_light(primary_color, black_color, white_color)}",
+  left_column_subtle_color        = "{apply_alpha(primary_color, 0.6)}",
+  left_column_selected_color      = "{primary_color}",
+  blockquote_left_color           = "{apply_alpha(secondary_color, 0.5)}",
+  table_row_even_background_color = "{darken_color(choose_dark_or_light(primary_color, secondary_color, primary_color), 0.3)}")

inst/scripts/generate_theme_functions.R

   ),
   file = here::here("R/mono_accent_inverse.R")
 )
+
+# ---- Duotone ----
+setup_theme_function(
+  "duo",
+  template_duo,
+  "#' @template duo",
+  "#' @family Duotone themes",
+  "#' @export",
+  body = c(
+    "  # DO NOT EDIT - Generated from inst/scripts/generate_theme_functions.R",
+    "  eval(parse(text = call_write_xaringan_theme()))"
+  ),
+  file = here::here("R/duo.R")
+)
+
+# ---- Duotone Accent ----
+setup_theme_function(
+  "duo_accent",
+  template_duo_accent,
+  "#' @template duo_accent",
+  "#' @family Duotone themes",
+  "#' @export",
+  body = c(
+    "  # DO NOT EDIT - Generated from inst/scripts/generate_theme_functions.R",
+    "  eval(parse(text = call_write_xaringan_theme()))"
+  ),
+  file = here::here("R/duo_accent.R")
+)
+
+# ---- Duotone Accent Inverse ----
+setup_theme_function(
+  "duo_accent_inverse",
+  template_duo_accent_inverse,
+  "#' @template duo_accent_inverse",
+  "#' @family Duotone themes",
+  "#' @export",
+  body = c(
+    "  # DO NOT EDIT - Generated from inst/scripts/generate_theme_functions.R",
+    "  eval(parse(text = call_write_xaringan_theme()))"
+  ),
+  file = here::here("R/duo_accent_inverse.R")
+)

man-roxygen/duo.R

+#' @title Duotone Theme
+#' @description A duotone theme designed to work well with two complementary
+#'   colors.

man-roxygen/duo_accent.R

+#' @title Duotone Accent Theme
+#' @description An default xaringan theme with a two colors used for color
+#'   accents on select elements (headers, bold text, etc.).

man-roxygen/duo_accent_inverse.R

+#' @title Duotone Accent Inverse Theme
+#' @description An "inverted" default xaringan theme with a two colors used
+#'   for color accents on select elements (headers, bold text, etc.).

man/duo.Rd

+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/duo.R
+\name{duo}
+\alias{duo}
+\title{Duotone Theme}
+\usage{
+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,
+  code_highlight_color = "rgba(255,255,0,0.5)",
+  code_inline_color = secondary_color, code_inline_background_color = NA,
+  inverse_background_color = secondary_color,
+  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 = NA,
+  left_column_subtle_color = apply_alpha(secondary_color, 0.6),
+  left_column_selected_color = secondary_color,
+  blockquote_left_color = apply_alpha(secondary_color, 0.5),
+  table_border_color = "#666", table_row_border_color = "#ddd",
+  table_row_even_background_color = lighten_color(primary_color, 0.3),
+  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,
+  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_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
+  code_font_family_fallback = "'Lucida Console', Monaco",
+  outfile = "xaringan-themed.css")
+}
+\arguments{
+\item{primary_color}{Duotone Primary Color, defaults to #1F4257}
+
+\item{secondary_color}{Duotone Secondary Color, defaults to #F97B64}
+
+\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))}}
+
+\item{header_color}{Header Color, defaults to \code{secondary_color}}
+
+\item{background_color}{Slide Background Color, defaults to \code{primary_color}}
+
+\item{link_color}{Link Color, defaults to \code{secondary_color}}
+
+\item{text_bold_color}{Bold Text Color, defaults to \code{secondary_color}}
+
+\item{text_slide_number_color}{Slide Number Color, defaults to \code{text_color}}
+
+\item{code_highlight_color}{Code Line Highlight, defaults to rgba(255,255,0,0.5)}
+
+\item{code_inline_color}{Inline Code Color, defaults to \code{secondary_color}}
+
+\item{code_inline_background_color}{Inline Code Background Color, defaults to NA}
+
+\item{inverse_background_color}{Inverse Background Color, defaults to \code{secondary_color}}
+
+\item{inverse_text_color}{Inverse Text Color, defaults to \code{primary_color}}
+
+\item{inverse_text_shadow}{Enables Shadow on text of inverse slides, defaults to \code{FALSE}}
+
+\item{inverse_header_color}{Inverse Header Color, defaults to \code{primary_color}}
+
+\item{title_slide_text_color}{Title Slide Text Color, defaults to \code{secondary_color}}
+
+\item{title_slide_background_color}{Title Slide Background Color, defaults to \code{primary_color}}
+
+\item{title_slide_background_image}{Title Slide Background Image URL, defaults to NA}
+
+\item{left_column_subtle_color}{Left Column Text (not last), defaults to \code{apply_alpha(secondary_color, 0.6)}}
+
+\item{left_column_selected_color}{Left Column Current Selection, defaults to \code{secondary_color}}
+
+\item{blockquote_left_color}{Blockquote Left Border Color, defaults to \code{apply_alpha(secondary_color, 0.5)}}
+
+\item{table_border_color}{Table top/bottom border, defaults to #666}
+
+\item{table_row_border_color}{Table row inner bottom border, defaults to #ddd}
+
+\item{table_row_even_background_color}{Table Even Row Background Color, defaults to \code{lighten_color(primary_color, 0.3)}}
+
+\item{text_font_google}{Use \code{google_font()} to specify body font, defaults to \code{NULL}}
+
+\item{text_font_family}{Body Text Font Family, defaults to 'Droid Serif'}
+
+\item{text_font_weight}{Body Text Font Weight, defaults to normal}
+
+\item{text_font_url}{Body Text Font URL(s), defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic}
+
+\item{text_font_family_fallback}{Body Text Font Fallbacks, defaults to 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'}
+
+\item{text_font_base}{Body Text Base Font (Total Failure Fallback), defaults to serif}
+
+\item{header_font_google}{Use \code{google_font()} to specify header font, defaults to \code{NULL}}
+
+\item{header_font_family}{Header Font Family, defaults to 'Yanone Kaffeesatz'}
+
+\item{header_font_weight}{Header Font Weight, defaults to normal}
+
+\item{header_font_url}{Header Font URL, defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz}
+
+\item{code_font_google}{Use \code{google_font()} to specify code font, defaults to \code{NULL}}
+
+\item{code_font_family}{Code Font Family, defaults to 'Source Code Pro'}
+
+\item{code_font_url}{Code Font URL, defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700}
+
+\item{code_font_family_fallback}{Code Font Fallback, defaults to 'Lucida Console', Monaco}
+
+\item{outfile}{Customized xaringan CSS output file name}
+}
+\description{
+A duotone theme designed to work well with two complementary
+  colors.
+}
+\seealso{
+Other Duotone themes: \code{\link{duo_accent_inverse}},
+  \code{\link{duo_accent}}
+}

man/duo_accent.Rd

+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/duo_accent.R
+\name{duo_accent}
+\alias{duo_accent}
+\title{Duotone Accent Theme}
+\usage{
+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,
+  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 = NA,
+  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), title_slide_background_color = primary_color,
+  title_slide_background_image = NA,
+  left_column_subtle_color = apply_alpha(primary_color, 0.6),
+  left_column_selected_color = primary_color,
+  blockquote_left_color = apply_alpha(secondary_color, 0.5),
+  table_border_color = "#666", table_row_border_color = "#ddd",
+  table_row_even_background_color = lighten_color(secondary_color, 0.3),
+  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,
+  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_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
+  code_font_family_fallback = "'Lucida Console', Monaco",
+  outfile = "xaringan-themed.css")
+}
+\arguments{
+\item{primary_color}{Duotone Primary Color, defaults to #006747}
+
+\item{secondary_color}{Duotone Secondary Color, defaults to #CFC493}
+
+\item{white_color}{Brightest color used, defaults to #FFFFFF}
+
+\item{black_color}{Darkest color used, defaults to #000000}
+
+\item{text_color}{Text Color, defaults to \code{black_color}}
+
+\item{header_color}{Header Color, defaults to \code{primary_color}}
+
+\item{background_color}{Slide Background Color, defaults to \code{white_color}}
+
+\item{link_color}{Link Color, defaults to \code{choose_dark_or_light(secondary_color, primary_color, secondary_color)}}
+
+\item{text_bold_color}{Bold Text Color, defaults to \code{choose_dark_or_light(secondary_color, primary_color, secondary_color)}}
+
+\item{text_slide_number_color}{Slide Number Color, defaults to \code{primary_color}}
+
+\item{code_highlight_color}{Code Line Highlight, defaults to rgba(255,255,0,0.5)}
+
+\item{code_inline_color}{Inline Code Color, defaults to \code{choose_dark_or_light(secondary_color, primary_color, secondary_color)}}
+
+\item{code_inline_background_color}{Inline Code Background Color, defaults to NA}
+
+\item{inverse_background_color}{Inverse Background Color, defaults to \code{secondary_color}}
+
+\item{inverse_text_color}{Inverse Text Color, defaults to \code{choose_dark_or_light(secondary_color, black_color, white_color)}}
+
+\item{inverse_text_shadow}{Enables Shadow on text of inverse slides, defaults to \code{FALSE}}
+
+\item{inverse_header_color}{Inverse Header Color, defaults to \code{choose_dark_or_light(secondary_color, black_color, white_color)}}
+
+\item{title_slide_text_color}{Title Slide Text Color, defaults to \code{choose_dark_or_light(primary_color, black_color, white_color)}}
+
+\item{title_slide_background_color}{Title Slide Background Color, defaults to \code{primary_color}}
+
+\item{title_slide_background_image}{Title Slide Background Image URL, defaults to NA}
+
+\item{left_column_subtle_color}{Left Column Text (not last), defaults to \code{apply_alpha(primary_color, 0.6)}}
+
+\item{left_column_selected_color}{Left Column Current Selection, defaults to \code{primary_color}}
+
+\item{blockquote_left_color}{Blockquote Left Border Color, defaults to \code{apply_alpha(secondary_color, 0.5)}}
+
+\item{table_border_color}{Table top/bottom border, defaults to #666}
+
+\item{table_row_border_color}{Table row inner bottom border, defaults to #ddd}
+
+\item{table_row_even_background_color}{Table Even Row Background Color, defaults to \code{lighten_color(secondary_color, 0.3)}}
+
+\item{text_font_google}{Use \code{google_font()} to specify body font, defaults to \code{NULL}}
+
+\item{text_font_family}{Body Text Font Family, defaults to 'Droid Serif'}
+
+\item{text_font_weight}{Body Text Font Weight, defaults to normal}
+
+\item{text_font_url}{Body Text Font URL(s), defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic}
+
+\item{text_font_family_fallback}{Body Text Font Fallbacks, defaults to 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'}
+
+\item{text_font_base}{Body Text Base Font (Total Failure Fallback), defaults to serif}
+
+\item{header_font_google}{Use \code{google_font()} to specify header font, defaults to \code{NULL}}
+
+\item{header_font_family}{Header Font Family, defaults to 'Yanone Kaffeesatz'}
+
+\item{header_font_weight}{Header Font Weight, defaults to normal}
+
+\item{header_font_url}{Header Font URL, defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz}
+
+\item{code_font_google}{Use \code{google_font()} to specify code font, defaults to \code{NULL}}
+
+\item{code_font_family}{Code Font Family, defaults to 'Source Code Pro'}
+
+\item{code_font_url}{Code Font URL, defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700}
+
+\item{code_font_family_fallback}{Code Font Fallback, defaults to 'Lucida Console', Monaco}
+
+\item{outfile}{Customized xaringan CSS output file name}
+}
+\description{
+An default xaringan theme with a two colors used for color
+  accents on select elements (headers, bold text, etc.).
+}
+\seealso{
+Other Duotone themes: \code{\link{duo_accent_inverse}},
+  \code{\link{duo}}
+}

man/duo_accent_inverse.Rd

+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/duo_accent_inverse.R
+\name{duo_accent_inverse}
+\alias{duo_accent_inverse}
+\title{Duotone Accent Inverse Theme}
+\usage{
+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, primary_color,
+  secondary_color), text_bold_color = choose_dark_or_light(secondary_color,
+  primary_color, secondary_color), text_slide_number_color = primary_color,
+  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 = NA,
+  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), title_slide_background_color = primary_color,
+  title_slide_background_image = NA,
+  left_column_subtle_color = apply_alpha(primary_color, 0.6),
+  left_column_selected_color = primary_color,
+  blockquote_left_color = apply_alpha(secondary_color, 0.5),
+  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_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,
+  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_url = "https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700",
+  code_font_family_fallback = "'Lucida Console', Monaco",
+  outfile = "xaringan-themed.css")
+}
+\arguments{
+\item{primary_color}{Duotone Primary Color, defaults to #006747}
+
+\item{secondary_color}{Duotone Secondary Color, defaults to #CFC493}
+
+\item{white_color}{Brightest color used, defaults to #FFFFFF}
+
+\item{black_color}{Darkest color used, defaults to #000000}
+
+\item{text_color}{Text Color, defaults to \code{white_color}}
+
+\item{header_color}{Header Color, defaults to \code{primary_color}}
+
+\item{background_color}{Slide Background Color, defaults to \code{black_color}}
+
+\item{link_color}{Link Color, defaults to \code{choose_dark_or_light(secondary_color, primary_color, secondary_color)}}
+
+\item{text_bold_color}{Bold Text Color, defaults to \code{choose_dark_or_light(secondary_color, primary_color, secondary_color)}}
+
+\item{text_slide_number_color}{Slide Number Color, defaults to \code{primary_color}}
+
+\item{code_highlight_color}{Code Line Highlight, defaults to rgba(255,255,0,0.5)}
+
+\item{code_inline_color}{Inline Code Color, defaults to \code{choose_dark_or_light(secondary_color, primary_color, secondary_color)}}
+
+\item{code_inline_background_color}{Inline Code Background Color, defaults to NA}
+
+\item{inverse_background_color}{Inverse Background Color, defaults to \code{secondary_color}}
+
+\item{inverse_text_color}{Inverse Text Color, defaults to \code{choose_dark_or_light(secondary_color, black_color, white_color)}}
+
+\item{inverse_text_shadow}{Enables Shadow on text of inverse slides, defaults to \code{FALSE}}
+
+\item{inverse_header_color}{Inverse Header Color, defaults to \code{choose_dark_or_light(secondary_color, black_color, white_color)}}
+
+\item{title_slide_text_color}{Title Slide Text Color, defaults to \code{choose_dark_or_light(primary_color, black_color, white_color)}}
+
+\item{title_slide_background_color}{Title Slide Background Color, defaults to \code{primary_color}}
+
+\item{title_slide_background_image}{Title Slide Background Image URL, defaults to NA}
+
+\item{left_column_subtle_color}{Left Column Text (not last), defaults to \code{apply_alpha(primary_color, 0.6)}}
+
+\item{left_column_selected_color}{Left Column Current Selection, defaults to \code{primary_color}}
+
+\item{blockquote_left_color}{Blockquote Left Border Color, defaults to \code{apply_alpha(secondary_color, 0.5)}}
+
+\item{table_border_color}{Table top/bottom border, defaults to #666}
+
+\item{table_row_border_color}{Table row inner bottom border, defaults to #ddd}
+
+\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)}}
+
+\item{text_font_google}{Use \code{google_font()} to specify body font, defaults to \code{NULL}}
+
+\item{text_font_family}{Body Text Font Family, defaults to 'Droid Serif'}
+
+\item{text_font_weight}{Body Text Font Weight, defaults to normal}
+
+\item{text_font_url}{Body Text Font URL(s), defaults to https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic}
+
+\item{text_font_family_fallback}{Body Text Font Fallbacks, defaults to 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC'}
+
+\item{text_font_base}{Body Text Base Font (Total Failure Fallback), defaults to serif}
+
+\item{header_font_google}{Use \code{google_font()} to specify header font, defaults to \code{NULL}}
+
+\item{header_font_family}{Header Font Family, defaults to 'Yanone Kaffeesatz'}
+
+\item{header_font_weight}{Header Font Weight, defaults to normal}
+
+\item{header_font_url}{Header Font URL, defaults to https://fonts.googleapis.com/css?family=Yanone+Kaffeesatz}
+
+\item{code_font_google}{Use \code{google_font()} to specify code font, defaults to \code{NULL}}
+
+\item{code_font_family}{Code Font Family, defaults to 'Source Code Pro'}
+
+\item{code_font_url}{Code Font URL, defaults to https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700}
+
+\item{code_font_family_fallback}{Code Font Fallback, defaults to 'Lucida Console', Monaco}
+
+\item{outfile}{Customized xaringan CSS output file name}
+}
+\description{
+An "inverted" default xaringan theme with a two colors used
+  for color accents on select elements (headers, bold text, etc.).
+}
+\seealso{
+Other Duotone themes: \code{\link{duo_accent}},
+  \code{\link{duo}}
+}