Add tests for theme css output

DESCRIPTION

 BugReports: https://github.com/gadenbuie/xaringanthemer/issues
 Encoding: UTF-8
 LazyData: true
-RoxygenNote: 6.0.1
+RoxygenNote: 6.1.1
 Roxygen: list(markdown = TRUE)
 Suggests: 
     testthat,

man/duo.Rd

 \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,
-  padding = "1em 4em 1em 4em", background_image = NA,
-  background_size = NA, background_position = NA,
+  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 = "1em 4em 1em 4em",
+  background_image = NA, background_size = NA,
+  background_position = NA,
   code_highlight_color = "rgba(255,255,0,0.5)",
-  code_inline_color = secondary_color, code_inline_background_color = NA,
-  code_inline_font_size = "1em", inverse_background_color = secondary_color,
+  code_inline_color = secondary_color,
+  code_inline_background_color = NA, code_inline_font_size = "1em",
+  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,
   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_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_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")
+  code_font_family_fallback = "'Lucida Console', Monaco",
+  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.}
 }
 \description{
 A duotone theme designed to work well with two complementary
-  colors.
+colors.
 }
 \seealso{
 Other themes: \code{\link{duo_accent_inverse}},
 Other Duotone themes: \code{\link{duo_accent_inverse}},
   \code{\link{duo_accent}}
 }
+\concept{Duotone themes}
+\concept{themes}

man/duo_accent.Rd

   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,
+  secondary_color),
+  text_bold_color = choose_dark_or_light(secondary_color, primary_color,
+  secondary_color), text_slide_number_color = primary_color,
   padding = "1em 4em 1em 4em", background_image = NA,
   background_size = NA, background_position = NA,
   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,
-  code_inline_font_size = "1em", inverse_background_color = secondary_color,
+  code_inline_color = choose_dark_or_light(secondary_color,
+  primary_color, secondary_color), code_inline_background_color = NA,
+  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), title_slide_background_color = primary_color,
+  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, title_slide_background_size = NA,
   title_slide_background_position = NA, footnote_color = NA,
   footnote_font_size = "0.9em", footnote_position_bottom = "3em",
   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_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_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")
+  code_font_family_fallback = "'Lucida Console', Monaco",
+  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.}
 }
 \description{
 An default xaringan theme with a two colors used for color
-  accents on select elements (headers, bold text, etc.).
+accents on select elements (headers, bold text, etc.).
 }
 \seealso{
 Other themes: \code{\link{duo_accent_inverse}},
 Other Duotone themes: \code{\link{duo_accent_inverse}},
   \code{\link{duo}}
 }
+\concept{Duotone themes}
+\concept{themes}

man/duo_accent_inverse.Rd

 \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,
+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 = "1em 4em 1em 4em", background_image = NA,
-  background_size = NA, background_position = NA,
+  secondary_color, primary_color),
+  text_slide_number_color = primary_color, padding = "1em 4em 1em 4em",
+  background_image = NA, background_size = NA,
+  background_position = NA,
   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 = NA,
-  code_inline_font_size = "1em", inverse_background_color = secondary_color,
+  code_inline_color = choose_dark_or_light(secondary_color,
+  secondary_color, primary_color), code_inline_background_color = NA,
+  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), title_slide_background_color = primary_color,
+  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, title_slide_background_size = NA,
   title_slide_background_position = NA, footnote_color = NA,
   footnote_font_size = "0.9em", footnote_position_bottom = "3em",
   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_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_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")
+  code_font_family_fallback = "'Lucida Console', Monaco",
+  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.}
 }
 \description{
 An "inverted" default xaringan theme with a two colors used
-  for color accents on select elements (headers, bold text, etc.).
+for color accents on select elements (headers, bold text, etc.).
 }
 \seealso{
 Other themes: \code{\link{duo_accent}}, \code{\link{duo}},
 Other Duotone themes: \code{\link{duo_accent}},
   \code{\link{duo}}
 }
+\concept{Duotone themes}
+\concept{themes}

man/google_language_codes.Rd

 \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"))
+  "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/mono_accent.Rd

   header_color = base_color, background_color = white_color,
   link_color = base_color, text_bold_color = base_color,
   text_slide_number_color = base_color, padding = "1em 4em 1em 4em",
-  background_image = NA, background_size = NA, background_position = NA,
+  background_image = NA, background_size = NA,
+  background_position = NA,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = base_color, code_inline_background_color = NA,
   code_inline_font_size = "1em", inverse_background_color = base_color,
   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_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_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")
+  code_font_family_fallback = "'Lucida Console', Monaco",
+  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.}
 }
 \description{
 The default xaringan theme with a single color used for color
-  accents on select elements (headers, bold text, etc.).
+accents on select elements (headers, bold text, etc.).
 }
 \seealso{
 Other themes: \code{\link{duo_accent_inverse}},
 Other Monotone themes: \code{\link{mono_accent_inverse}},
   \code{\link{mono_dark}}, \code{\link{mono_light}}
 }
+\concept{Monotone themes}
+\concept{themes}

man/mono_accent_inverse.Rd

 \title{Monotone Accent Inverse Theme}
 \usage{
 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 = "1em 4em 1em 4em",
-  background_image = NA, background_size = NA, background_position = NA,
+  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 = "1em 4em 1em 4em", background_image = NA,
+  background_size = NA, background_position = NA,
   code_highlight_color = "rgba(255,255,0,0.5)",
   code_inline_color = base_color, code_inline_background_color = NA,
   code_inline_font_size = "1em", inverse_background_color = base_color,
   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_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_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")
+  code_font_family_fallback = "'Lucida Console', Monaco",
+  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.}
 }
 \description{
 An "inverted" default xaringan theme with a single color used
-  for color accents on select elements (headers, bold text, etc.).
+for color accents on select elements (headers, bold text, etc.).
 }
 \seealso{
 Other themes: \code{\link{duo_accent_inverse}},
 Other Monotone themes: \code{\link{mono_accent}},
   \code{\link{mono_dark}}, \code{\link{mono_light}}
 }
+\concept{Monotone themes}
+\concept{themes}

man/mono_dark.Rd

 \alias{mono_dark}
 \title{Monotone Dark Theme}
 \usage{
-mono_dark(base_color = "#cbf7ed", white_color = lighten_color(base_color,
-  0.8), black_color = darken_color(base_color, 0.85),
+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,
   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_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_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")
+  code_font_family_fallback = "'Lucida Console', Monaco",
+  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.}
 Other Monotone themes: \code{\link{mono_accent_inverse}},
   \code{\link{mono_accent}}, \code{\link{mono_light}}
 }
+\concept{Monotone themes}
+\concept{themes}

man/mono_light.Rd

 \alias{mono_light}
 \title{Monotone Light Theme}
 \usage{
-mono_light(base_color = "#23395b", white_color = lighten_color(base_color,
-  0.9), black_color = darken_color(base_color, 0.3),
+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,
   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_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_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")
+  code_font_family_fallback = "'Lucida Console', Monaco",
+  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.}
 Other Monotone themes: \code{\link{mono_accent_inverse}},
   \code{\link{mono_accent}}, \code{\link{mono_dark}}
 }
+\concept{Monotone themes}
+\concept{themes}

man/solarized_dark.Rd

   code_highlight_color = "#268bd240", code_inline_color = "#6c71c4",
   code_inline_background_color = NA, code_inline_font_size = "1em",
   inverse_background_color = "#fdf6e3", inverse_text_color = "#002b36",
-  inverse_text_shadow = FALSE, inverse_header_color = inverse_text_color,
+  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 = NA, title_slide_background_size = NA,
   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",
+  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", text_slide_number_font_size = "0.9em",
   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_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_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")
+  code_font_family_fallback = "'Lucida Console', Monaco",
+  extra_css = NULL, extra_fonts = NULL,
+  outfile = "xaringan-themer.css")
 }
 \arguments{
 \item{text_color}{Text Color. Defaults to #839496. Modifies the \code{body} element.}
 }
 \description{
 A dark theme based around on the solarized color scheme.
-  Works well with "\code{highlightStyle: solarized-dark}" or
-  "\code{highlighStyle: solarized-light}".
+Works well with "\code{highlightStyle: solarized-dark}" or
+"\code{highlighStyle: solarized-light}".
 }
 \references{
 \url{http://ethanschoonover.com/solarized}
 
 Other Solarized themes: \code{\link{solarized_light}}
 }
+\concept{Solarized themes}
+\concept{themes}

man/solarized_light.Rd

   code_highlight_color = "#268bd240", code_inline_color = "#6c71c4",
   code_inline_background_color = NA, code_inline_font_size = "1em",
   inverse_background_color = "#002b36", inverse_text_color = "#fdf6e3",
-  inverse_text_shadow = FALSE, inverse_header_color = inverse_text_color,
+  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 = NA, title_slide_background_size = NA,
   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",
+  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", text_slide_number_font_size = "0.9em",
   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_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_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")
+  code_font_family_fallback = "'Lucida Console', Monaco",
+  extra_css = NULL, extra_fonts = NULL,
+  outfile = "xaringan-themer.css")
 }
 \arguments{
 \item{text_color}{Text Color. Defaults to #657b83. Modifies the \code{body} element.}
 }
 \description{
 A light theme based around on the solarized color scheme.
-  Works well with "\code{highlightStyle: solarized-dark}" or
-  "\code{highlighStyle: solarized-light}".
+Works well with "\code{highlightStyle: solarized-dark}" or
+"\code{highlighStyle: solarized-light}".
 }
 \references{
 \url{http://ethanschoonover.com/solarized}
 
 Other Solarized themes: \code{\link{solarized_dark}}
 }
+\concept{Solarized themes}
+\concept{themes}

man/write_xaringan_theme.Rd

 \usage{
 write_xaringan_theme(text_color = "#000", header_color = "#000",
   background_color = "#FFF", link_color = "rgb(249, 38, 114)",
-  text_bold_color = NA, text_slide_number_color = inverse_background_color,
+  text_bold_color = NA,
+  text_slide_number_color = inverse_background_color,
   padding = "1em 4em 1em 4em", background_image = NA,
   background_size = NA, background_position = NA,
-  code_highlight_color = "rgba(255,255,0,0.5)", code_inline_color = "#000",
-  code_inline_background_color = NA, code_inline_font_size = "1em",
-  inverse_background_color = "#272822", inverse_text_color = "#d6d6d6",
-  inverse_text_shadow = FALSE, inverse_header_color = "#f3f3f3",
+  code_highlight_color = "rgba(255,255,0,0.5)",
+  code_inline_color = "#000", code_inline_background_color = NA,
+  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 = NA, title_slide_background_size = NA,
   title_slide_background_position = NA, footnote_color = NA,
   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",
-  text_slide_number_font_size = "0.9em", text_font_google = NULL,
-  text_font_family = "'Droid Serif'", text_font_weight = "normal",
+  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", 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,
-  header_font_family = "'Yanone Kaffeesatz'", header_font_weight = "normal",
+  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_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")
+  code_font_family_fallback = "'Lucida Console', Monaco",
+  extra_css = NULL, extra_fonts = NULL,
+  outfile = "xaringan-themer.css")
 }
 \arguments{
 \item{text_color}{Text Color. Defaults to #000. Modifies the \code{body} element.}
   \code{\link{mono_light}}, \code{\link{solarized_dark}},
   \code{\link{solarized_light}}
 }
+\concept{themes}

man/xaringanthemer-package.Rd

 \title{xaringanthemer: Xaringan CSS Theme Generator}
 \description{
 Create and edit your xaringan CSS files from within your R
-R Markdown slide source. More technically, this package actually creates
-valid remarkjs CSS themes that are easily used by xarangan.
+    R Markdown slide source. More technically, this package actually creates
+    valid remarkjs CSS themes that are easily used by xarangan.
 }
 \seealso{
 Useful links:

tests/testthat/css/duo.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
+ *
+ * ------------------------------------------------------- */
+@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);
+
+
+body {
+  font-family: 'Droid Serif', 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC', serif;
+  font-weight: normal;
+  color: #FEFDFD;
+}
+h1, h2, h3 {
+  font-family: 'Yanone Kaffeesatz';
+  font-weight: normal;
+  color: #F97B64;
+}
+.remark-slide-content {
+  background-color: #1F4257;
+  font-size: 20px;
+  
+  
+  
+  padding: 1em 4em 1em 4em;
+}
+.remark-slide-content h1 {
+    font-size: 55px;
+}
+.remark-slide-content h2 {
+    font-size: 45px;
+}
+.remark-slide-content h3 {
+    font-size: 35px;
+}
+.remark-code, .remark-inline-code {
+  font-family: 'Source Code Pro', 'Lucida Console', Monaco, monospace;
+}
+.remark-code {
+  font-size: 0.9em;
+}
+.remark-inline-code {
+  font-size: 1em;
+  color: #F97B64;
+  
+  
+}
+.remark-slide-number {
+  color: #FEFDFD;
+  opacity: 1;
+  font-size: 0.9em;
+}
+strong{color:#F97B64;}
+a, a > code {
+  color: #F97B64;
+  text-decoration: none;
+}
+.footnote {
+  
+  position: absolute;
+  bottom: 3em;
+  padding-right: 4em;
+  font-size: 0.9em;
+}
+.remark-code-line-highlighted {
+  background-color: rgba(255,255,0,0.5);
+}
+.inverse {
+  background-color: #F97B64;
+  color: #1F4257;
+  
+}
+.inverse h1, .inverse h2, .inverse h3 {
+  color: #1F4257;
+}
+.title-slide, .title-slide h1, .title-slide h2, .title-slide h3 {
+  color: #F97B64;
+}
+.title-slide {
+  background-color: #1F4257;
+  
+  
+  
+}
+.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: #F97B6499;
+}
+.left-column h2:last-of-type, .left-column h3:last-child {
+  color: #F97B64;
+}
+.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 #F97B6480;
+  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: #627A89 }
+table.dataTable tbody {
+  background-color: #1F4257;
+  color: #FEFDFD;
+}
+table.dataTable.display tbody tr.odd {
+  background-color: #1F4257;
+}
+table.dataTable.display tbody tr.even {
+  background-color: #627A89;
+}
+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: #FEFDFD;
+}
+.dataTables_wrapper .dataTables_paginate .paginate_button {
+  color: #FEFDFD !important;
+}
+
+@page { margin: 0; }
+@media print {
+  .remark-slide-scaler {
+    width: 100% !important;
+    height: 100% !important;
+    transform: scale(1) !important;
+    top: 0 !important;
+    left: 0 !important;
+  }
+}

tests/testthat/css/duo_accent.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
+ *
+ * ------------------------------------------------------- */
+@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);
+
+
+body {
+  font-family: 'Droid Serif', 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC', serif;
+  font-weight: normal;
+  color: #000000;
+}
+h1, h2, h3 {
+  font-family: 'Yanone Kaffeesatz';
+  font-weight: normal;
+  color: #006747;
+}
+.remark-slide-content {
+  background-color: #FFFFFF;
+  font-size: 20px;
+  
+  
+  
+  padding: 1em 4em 1em 4em;
+}
+.remark-slide-content h1 {
+    font-size: 55px;
+}
+.remark-slide-content h2 {
+    font-size: 45px;
+}
+.remark-slide-content h3 {
+    font-size: 35px;
+}
+.remark-code, .remark-inline-code {
+  font-family: 'Source Code Pro', 'Lucida Console', Monaco, monospace;
+}
+.remark-code {
+  font-size: 0.9em;
+}
+.remark-inline-code {
+  font-size: 1em;
+  color: #006747;
+  
+  
+}
+.remark-slide-number {
+  color: #006747;
+  opacity: 1;
+  font-size: 0.9em;
+}
+strong{color:#006747;}
+a, a > code {
+  color: #006747;
+  text-decoration: none;
+}
+.footnote {
+  
+  position: absolute;
+  bottom: 3em;
+  padding-right: 4em;
+  font-size: 0.9em;
+}
+.remark-code-line-highlighted {
+  background-color: rgba(255,255,0,0.5);
+}
+.inverse {
+  background-color: #CFC493;
+  color: #000000;
+  
+}
+.inverse h1, .inverse h2, .inverse h3 {
+  color: #000000;
+}
+.title-slide, .title-slide h1, .title-slide h2, .title-slide h3 {
+  color: #FFFFFF;
+}
+.title-slide {
+  background-color: #006747;
+  
+  
+  
+}
+.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: #00674799;
+}
+.left-column h2:last-of-type, .left-column h3:last-child {
+  color: #006747;
+}
+.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 #CFC49380;
+  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: #DDD5B3 }
+table.dataTable tbody {
+  background-color: #FFFFFF;
+  color: #000000;
+}
+table.dataTable.display tbody tr.odd {
+  background-color: #FFFFFF;
+}
+table.dataTable.display tbody tr.even {
+  background-color: #DDD5B3;
+}
+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: #000000;
+}
+.dataTables_wrapper .dataTables_paginate .paginate_button {
+  color: #000000 !important;
+}
+
+@page { margin: 0; }
+@media print {
+  .remark-slide-scaler {
+    width: 100% !important;
+    height: 100% !important;
+    transform: scale(1) !important;
+    top: 0 !important;
+    left: 0 !important;
+  }
+}

tests/testthat/css/duo_accent_inverse.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
+ *
+ * ------------------------------------------------------- */
+@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);
+
+
+body {
+  font-family: 'Droid Serif', 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC', serif;
+  font-weight: normal;
+  color: #FFFFFF;
+}
+h1, h2, h3 {
+  font-family: 'Yanone Kaffeesatz';
+  font-weight: normal;
+  color: #006747;
+}
+.remark-slide-content {
+  background-color: #000000;
+  font-size: 20px;
+  
+  
+  
+  padding: 1em 4em 1em 4em;
+}
+.remark-slide-content h1 {
+    font-size: 55px;
+}
+.remark-slide-content h2 {
+    font-size: 45px;
+}
+.remark-slide-content h3 {
+    font-size: 35px;
+}
+.remark-code, .remark-inline-code {
+  font-family: 'Source Code Pro', 'Lucida Console', Monaco, monospace;
+}
+.remark-code {
+  font-size: 0.9em;
+}
+.remark-inline-code {
+  font-size: 1em;
+  color: #CFC493;
+  
+  
+}
+.remark-slide-number {
+  color: #006747;
+  opacity: 1;
+  font-size: 0.9em;
+}
+strong{color:#CFC493;}
+a, a > code {
+  color: #CFC493;
+  text-decoration: none;
+}
+.footnote {
+  
+  position: absolute;
+  bottom: 3em;
+  padding-right: 4em;
+  font-size: 0.9em;
+}
+.remark-code-line-highlighted {
+  background-color: rgba(255,255,0,0.5);
+}
+.inverse {
+  background-color: #CFC493;
+  color: #000000;
+  
+}
+.inverse h1, .inverse h2, .inverse h3 {
+  color: #000000;
+}
+.title-slide, .title-slide h1, .title-slide h2, .title-slide h3 {
+  color: #FFFFFF;
+}
+.title-slide {
+  background-color: #006747;
+  
+  
+  
+}
+.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: #00674799;
+}
+.left-column h2:last-of-type, .left-column h3:last-child {
+  color: #006747;
+}
+.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 #CFC49380;
+  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: #004831 }
+table.dataTable tbody {
+  background-color: #000000;
+  color: #FFFFFF;
+}
+table.dataTable.display tbody tr.odd {
+  background-color: #000000;
+}
+table.dataTable.display tbody tr.even {
+  background-color: #004831;
+}
+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: #FFFFFF;
+}
+.dataTables_wrapper .dataTables_paginate .paginate_button {
+  color: #FFFFFF !important;
+}
+
+@page { margin: 0; }
+@media print {
+  .remark-slide-scaler {
+    width: 100% !important;
+    height: 100% !important;
+    transform: scale(1) !important;
+    top: 0 !important;
+    left: 0 !important;
+  }
+}

tests/testthat/css/mono_accent.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
+ *
+ * ------------------------------------------------------- */
+@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);
+
+
+body {
+  font-family: 'Droid Serif', 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC', serif;
+  font-weight: normal;
+  color: #272822;
+}
+h1, h2, h3 {
+  font-family: 'Yanone Kaffeesatz';
+  font-weight: normal;
+  color: #43418A;
+}
+.remark-slide-content {
+  background-color: #FFFFFF;
+  font-size: 20px;
+  
+  
+  
+  padding: 1em 4em 1em 4em;
+}
+.remark-slide-content h1 {
+    font-size: 55px;
+}
+.remark-slide-content h2 {
+    font-size: 45px;
+}
+.remark-slide-content h3 {
+    font-size: 35px;
+}
+.remark-code, .remark-inline-code {
+  font-family: 'Source Code Pro', 'Lucida Console', Monaco, monospace;
+}
+.remark-code {
+  font-size: 0.9em;
+}
+.remark-inline-code {
+  font-size: 1em;
+  color: #43418A;
+  
+  
+}
+.remark-slide-number {
+  color: #43418A;
+  opacity: 1;
+  font-size: 0.9em;
+}
+strong{color:#43418A;}
+a, a > code {
+  color: #43418A;
+  text-decoration: none;
+}
+.footnote {
+  
+  position: absolute;
+  bottom: 3em;
+  padding-right: 4em;
+  font-size: 0.9em;
+}
+.remark-code-line-highlighted {
+  background-color: rgba(255,255,0,0.5);
+}
+.inverse {
+  background-color: #43418A;
+  color: #FFFFFF;
+  
+}
+.inverse h1, .inverse h2, .inverse h3 {
+  color: #FFFFFF;
+}
+.title-slide, .title-slide h1, .title-slide h2, .title-slide h3 {
+  color: #FFFFFF;
+}
+.title-slide {
+  background-color: #43418A;
+  
+  
+  
+}
+.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: #43418A99;
+}
+.left-column h2:last-of-type, .left-column h3:last-child {
+  color: #43418A;
+}
+.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 #43418A80;
+  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: #C6C6DB }
+table.dataTable tbody {
+  background-color: #FFFFFF;
+  color: #272822;
+}
+table.dataTable.display tbody tr.odd {
+  background-color: #FFFFFF;
+}
+table.dataTable.display tbody tr.even {
+  background-color: #C6C6DB;
+}
+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: #272822;
+}
+.dataTables_wrapper .dataTables_paginate .paginate_button {
+  color: #272822 !important;
+}
+
+@page { margin: 0; }
+@media print {
+  .remark-slide-scaler {
+    width: 100% !important;
+    height: 100% !important;
+    transform: scale(1) !important;
+    top: 0 !important;
+    left: 0 !important;
+  }
+}

tests/testthat/css/mono_accent_inverse.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
+ *
+ * ------------------------------------------------------- */
+@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);
+
+
+body {
+  font-family: 'Droid Serif', 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC', serif;
+  font-weight: normal;
+  color: #FFFFFF;
+}
+h1, h2, h3 {
+  font-family: 'Yanone Kaffeesatz';
+  font-weight: normal;
+  color: #3C989E;
+}
+.remark-slide-content {
+  background-color: #050F0F;
+  font-size: 20px;
+  
+  
+  
+  padding: 1em 4em 1em 4em;
+}
+.remark-slide-content h1 {
+    font-size: 55px;
+}
+.remark-slide-content h2 {
+    font-size: 45px;
+}
+.remark-slide-content h3 {
+    font-size: 35px;
+}
+.remark-code, .remark-inline-code {
+  font-family: 'Source Code Pro', 'Lucida Console', Monaco, monospace;
+}
+.remark-code {
+  font-size: 0.9em;
+}
+.remark-inline-code {
+  font-size: 1em;
+  color: #3C989E;
+  
+  
+}
+.remark-slide-number {
+  color: #3C989E;
+  opacity: 1;
+  font-size: 0.9em;
+}
+strong{color:#3C989E;}
+a, a > code {
+  color: #3C989E;
+  text-decoration: none;
+}
+.footnote {
+  
+  position: absolute;
+  bottom: 3em;
+  padding-right: 4em;
+  font-size: 0.9em;
+}
+.remark-code-line-highlighted {
+  background-color: rgba(255,255,0,0.5);
+}
+.inverse {
+  background-color: #3C989E;
+  color: #050F0F;
+  
+}
+.inverse h1, .inverse h2, .inverse h3 {
+  color: #050F0F;
+}
+.title-slide, .title-slide h1, .title-slide h2, .title-slide h3 {
+  color: #050F0F;
+}
+.title-slide {
+  background-color: #3C989E;
+  
+  
+  
+}
+.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: #3C989E99;
+}
+.left-column h2:last-of-type, .left-column h3:last-child {
+  color: #3C989E;
+}
+.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 #3C989E80;
+  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: #122D2F }
+table.dataTable tbody {
+  background-color: #050F0F;
+  color: #FFFFFF;
+}
+table.dataTable.display tbody tr.odd {
+  background-color: #050F0F;
+}
+table.dataTable.display tbody tr.even {
+  background-color: #122D2F;
+}
+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: #FFFFFF;
+}
+.dataTables_wrapper .dataTables_paginate .paginate_button {
+  color: #FFFFFF !important;
+}
+
+@page { margin: 0; }
+@media print {
+  .remark-slide-scaler {
+    width: 100% !important;
+    height: 100% !important;
+    transform: scale(1) !important;
+    top: 0 !important;
+    left: 0 !important;
+  }
+}

tests/testthat/css/mono_dark.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
+ *
+ * ------------------------------------------------------- */
+@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);
+
+
+body {
+  font-family: 'Droid Serif', 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC', serif;
+  font-weight: normal;
+  color: #F4FDFB;
+}
+h1, h2, h3 {
+  font-family: 'Yanone Kaffeesatz';
+  font-weight: normal;
+  color: #cbf7ed;
+}
+.remark-slide-content {
+  background-color: #1E2523;
+  font-size: 20px;
+  
+  
+  
+  padding: 1em 4em 1em 4em;
+}
+.remark-slide-content h1 {
+    font-size: 55px;
+}
+.remark-slide-content h2 {
+    font-size: 45px;
+}
+.remark-slide-content h3 {
+    font-size: 35px;
+}
+.remark-code, .remark-inline-code {
+  font-family: 'Source Code Pro', 'Lucida Console', Monaco, monospace;
+}
+.remark-code {
+  font-size: 0.9em;
+}
+.remark-inline-code {
+  font-size: 1em;
+  color: #cbf7ed;
+  
+  
+}
+.remark-slide-number {
+  color: #cbf7ed;
+  opacity: 1;
+  font-size: 0.9em;
+}
+strong{color:#cbf7ed;}
+a, a > code {
+  color: #cbf7ed;
+  text-decoration: none;
+}
+.footnote {
+  
+  position: absolute;
+  bottom: 3em;
+  padding-right: 4em;
+  font-size: 0.9em;
+}
+.remark-code-line-highlighted {
+  background-color: rgba(255,255,0,0.5);
+}
+.inverse {
+  background-color: #cbf7ed;
+  color: #1E2523;
+  
+}
+.inverse h1, .inverse h2, .inverse h3 {
+  color: #1E2523;
+}
+.title-slide, .title-slide h1, .title-slide h2, .title-slide h3 {
+  color: #1E2523;
+}
+.title-slide {
+  background-color: #cbf7ed;
+  
+  
+  
+}
+.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: #cbf7ed99;
+}
+.left-column h2:last-of-type, .left-column h3:last-child {
+  color: #cbf7ed;
+}
+.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 #cbf7ed80;
+  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: #3C4A47 }
+table.dataTable tbody {
+  background-color: #1E2523;
+  color: #F4FDFB;
+}
+table.dataTable.display tbody tr.odd {
+  background-color: #1E2523;
+}
+table.dataTable.display tbody tr.even {
+  background-color: #3C4A47;
+}
+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: #F4FDFB;
+}
+.dataTables_wrapper .dataTables_paginate .paginate_button {
+  color: #F4FDFB !important;
+}
+
+@page { margin: 0; }
+@media print {
+  .remark-slide-scaler {
+    width: 100% !important;
+    height: 100% !important;
+    transform: scale(1) !important;
+    top: 0 !important;
+    left: 0 !important;
+  }
+}

tests/testthat/css/mono_light.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
+ *
+ * ------------------------------------------------------- */
+@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);
+
+
+body {
+  font-family: 'Droid Serif', 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC', serif;
+  font-weight: normal;
+  color: #18273F;
+}
+h1, h2, h3 {
+  font-family: 'Yanone Kaffeesatz';
+  font-weight: normal;
+  color: #23395b;
+}
+.remark-slide-content {
+  background-color: #E9EBEE;
+  font-size: 20px;
+  
+  
+  
+  padding: 1em 4em 1em 4em;
+}
+.remark-slide-content h1 {
+    font-size: 55px;
+}
+.remark-slide-content h2 {
+    font-size: 45px;
+}
+.remark-slide-content h3 {
+    font-size: 35px;
+}
+.remark-code, .remark-inline-code {
+  font-family: 'Source Code Pro', 'Lucida Console', Monaco, monospace;
+}
+.remark-code {
+  font-size: 0.9em;
+}
+.remark-inline-code {
+  font-size: 1em;
+  color: #23395b;
+  
+  
+}
+.remark-slide-number {
+  color: #23395b;
+  opacity: 1;
+  font-size: 0.9em;
+}
+strong{color:#23395b;}
+a, a > code {
+  color: #23395b;
+  text-decoration: none;
+}
+.footnote {
+  
+  position: absolute;
+  bottom: 3em;
+  padding-right: 4em;
+  font-size: 0.9em;
+}
+.remark-code-line-highlighted {
+  background-color: rgba(255,255,0,0.5);
+}
+.inverse {
+  background-color: #23395b;
+  color: #E9EBEE;
+  
+}
+.inverse h1, .inverse h2, .inverse h3 {
+  color: #E9EBEE;
+}
+.title-slide, .title-slide h1, .title-slide h2, .title-slide h3 {
+  color: #E9EBEE;
+}
+.title-slide {
+  background-color: #23395b;
+  
+  
+  
+}
+.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: #23395b99;
+}
+.left-column h2:last-of-type, .left-column h3:last-child {
+  color: #23395b;
+}
+.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 #23395b80;
+  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: #D3D7DE }
+table.dataTable tbody {
+  background-color: #E9EBEE;
+  color: #18273F;
+}
+table.dataTable.display tbody tr.odd {
+  background-color: #E9EBEE;
+}
+table.dataTable.display tbody tr.even {
+  background-color: #D3D7DE;
+}
+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: #18273F;
+}
+.dataTables_wrapper .dataTables_paginate .paginate_button {
+  color: #18273F !important;
+}
+
+@page { margin: 0; }
+@media print {
+  .remark-slide-scaler {
+    width: 100% !important;
+    height: 100% !important;
+    transform: scale(1) !important;
+    top: 0 !important;
+    left: 0 !important;
+  }
+}

tests/testthat/css/solarized_dark.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
+ *
+ * ------------------------------------------------------- */
+@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);
+
+
+body {
+  font-family: 'Droid Serif', 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC', serif;
+  font-weight: normal;
+  color: #839496;
+}
+h1, h2, h3 {
+  font-family: 'Yanone Kaffeesatz';
+  font-weight: normal;
+  color: #dc322f;
+}
+.remark-slide-content {
+  background-color: #002b36;
+  font-size: 20px;
+  
+  
+  
+  padding: 1em 4em 1em 4em;
+}
+.remark-slide-content h1 {
+    font-size: 55px;
+}
+.remark-slide-content h2 {
+    font-size: 45px;
+}
+.remark-slide-content h3 {
+    font-size: 35px;
+}
+.remark-code, .remark-inline-code {
+  font-family: 'Source Code Pro', 'Lucida Console', Monaco, monospace;
+}
+.remark-code {
+  font-size: 0.9em;
+}
+.remark-inline-code {
+  font-size: 1em;
+  color: #6c71c4;
+  
+  
+}
+.remark-slide-number {
+  color: #586e75;
+  opacity: 1;
+  font-size: 0.9em;
+}
+strong{color:#d33682;}
+a, a > code {
+  color: #b58900;
+  text-decoration: none;
+}
+.footnote {
+  
+  position: absolute;
+  bottom: 3em;
+  padding-right: 4em;
+  font-size: 0.9em;
+}
+.remark-code-line-highlighted {
+  background-color: #268bd240;
+}
+.inverse {
+  background-color: #fdf6e3;
+  color: #002b36;
+  
+}
+.inverse h1, .inverse h2, .inverse h3 {
+  color: #002b36;
+}
+.title-slide, .title-slide h1, .title-slide h2, .title-slide h3 {
+  color: #002b36;
+}
+.title-slide {
+  background-color: #fdf6e3;
+  
+  
+  
+}
+.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: #586e75;
+}
+.left-column h2:last-of-type, .left-column h3:last-child {
+  color: #93a1a1;
+}
+.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 #cb4b16;
+  padding-left: 1em;
+}
+.remark-slide table {
+  margin: auto;
+  border-top: 1px solid #657b83;
+  border-bottom: 1px solid #657b83;
+}
+.remark-slide table thead th { border-bottom: 1px solid #657b83; }
+th, td { padding: 5px; }
+.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) { background: #073642 }
+table.dataTable tbody {
+  background-color: #002b36;
+  color: #839496;
+}
+table.dataTable.display tbody tr.odd {
+  background-color: #002b36;
+}
+table.dataTable.display tbody tr.even {
+  background-color: #073642;
+}
+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: #839496;
+}
+.dataTables_wrapper .dataTables_paginate .paginate_button {
+  color: #839496 !important;
+}
+
+@page { margin: 0; }
+@media print {
+  .remark-slide-scaler {
+    width: 100% !important;
+    height: 100% !important;
+    transform: scale(1) !important;
+    top: 0 !important;
+    left: 0 !important;
+  }
+}

tests/testthat/css/solarized_light.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
+ *
+ * ------------------------------------------------------- */
+@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);
+
+
+body {
+  font-family: 'Droid Serif', 'Palatino Linotype', 'Book Antiqua', Palatino, 'Microsoft YaHei', 'Songti SC', serif;
+  font-weight: normal;
+  color: #657b83;
+}
+h1, h2, h3 {
+  font-family: 'Yanone Kaffeesatz';
+  font-weight: normal;
+  color: #dc322f;
+}
+.remark-slide-content {
+  background-color: #fdf6e3;
+  font-size: 20px;
+  
+  
+  
+  padding: 1em 4em 1em 4em;
+}
+.remark-slide-content h1 {
+    font-size: 55px;
+}
+.remark-slide-content h2 {
+    font-size: 45px;
+}
+.remark-slide-content h3 {
+    font-size: 35px;
+}
+.remark-code, .remark-inline-code {
+  font-family: 'Source Code Pro', 'Lucida Console', Monaco, monospace;
+}
+.remark-code {
+  font-size: 0.9em;
+}
+.remark-inline-code {
+  font-size: 1em;
+  color: #6c71c4;
+  
+  
+}
+.remark-slide-number {
+  color: #93a1a1;
+  opacity: 1;
+  font-size: 0.9em;
+}
+strong{color:#d33682;}
+a, a > code {
+  color: #b58900;
+  text-decoration: none;
+}
+.footnote {
+  
+  position: absolute;
+  bottom: 3em;
+  padding-right: 4em;
+  font-size: 0.9em;
+}
+.remark-code-line-highlighted {
+  background-color: #268bd240;
+}
+.inverse {
+  background-color: #002b36;
+  color: #fdf6e3;
+  
+}
+.inverse h1, .inverse h2, .inverse h3 {
+  color: #fdf6e3;
+}
+.title-slide, .title-slide h1, .title-slide h2, .title-slide h3 {
+  color: #fdf6e3;
+}
+.title-slide {
+  background-color: #002b36;
+  
+  
+  
+}
+.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: #93a1a1;
+}
+.left-column h2:last-of-type, .left-column h3:last-child {
+  color: #586e75;
+}
+.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 #cb4b16;
+  padding-left: 1em;
+}
+.remark-slide table {
+  margin: auto;
+  border-top: 1px solid #839496;
+  border-bottom: 1px solid #839496;
+}
+.remark-slide table thead th { border-bottom: 1px solid #839496; }
+th, td { padding: 5px; }
+.remark-slide thead, .remark-slide tfoot, .remark-slide tr:nth-child(even) { background: #eee8d5 }
+table.dataTable tbody {
+  background-color: #fdf6e3;
+  color: #657b83;
+}
+table.dataTable.display tbody tr.odd {
+  background-color: #fdf6e3;
+}
+table.dataTable.display tbody tr.even {
+  background-color: #eee8d5;
+}
+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: #657b83;
+}
+.dataTables_wrapper .dataTables_paginate .paginate_button {
+  color: #657b83 !important;
+}
+
+@page { margin: 0; }
+@media print {
+  .remark-slide-scaler {
+    width: 100% !important;
+    height: 100% !important;
+    transform: scale(1) !important;
+    top: 0 !important;
+    left: 0 !important;
+  }
+}

tests/testthat/test-themes.R

+context("test-themes")
+
+test_theme_file <- function(theme = "duo") {
+  theme_fun <- switch(
+    theme,
+    "duo" = duo,
+    "duo_accent" = duo_accent,
+    "duo_accent_inverse" = duo_accent_inverse,
+    "mono_accent" = mono_accent,
+    "mono_accent_inverse" = mono_accent_inverse,
+    "mono_dark" = mono_dark,
+    "mono_light" = mono_light,
+    "solarized_dark" = solarized_dark,
+    "solarized_light" = solarized_light,
+    stop("Unknown theme")
+  )
+
+  tmpfile <- tempfile()
+  theme_file <- paste0(theme, ".css")
+
+  theme_fun(outfile = tmpfile)
+  theme_css <- paste(readLines(tmpfile), collapse = "\n")
+  expect_known_output(cat(theme_css), test_path("css", theme_file))
+}
+
+test_that("duo()", test_theme_file("duo"))
+test_that("duo_accent()", test_theme_file("duo_accent"))
+test_that("duo_accent_inverse()", test_theme_file("duo_accent_inverse"))
+test_that("mono_accent()", test_theme_file("mono_accent"))
+test_that("mono_accent_inverse()", test_theme_file("mono_accent_inverse"))
+test_that("mono_dark()", test_theme_file("mono_dark"))
+test_that("mono_light()", test_theme_file("mono_light"))
+test_that("solarized_dark()", test_theme_file("solarized_dark"))
+test_that("solarized_light()", test_theme_file("solarized_light"))
+