A duotone theme designed to work well with two complementary colors.
style_duo(
primary_color = "#1F4257",
secondary_color = "#F97B64",
text_color = choose_dark_or_light(primary_color, darken_color(primary_color, 0.9),
lighten_color(secondary_color, 0.99)),
header_color = secondary_color,
background_color = primary_color,
link_color = secondary_color,
text_bold_color = secondary_color,
text_slide_number_color = text_color,
padding = "16px 64px 16px 64px",
background_image = NULL,
background_size = NULL,
background_position = NULL,
code_highlight_color = "rgba(255,255,0,0.5)",
code_inline_color = secondary_color,
code_inline_background_color = NULL,
code_inline_font_size = "1em",
inverse_background_color = secondary_color,
inverse_text_color = primary_color,
inverse_text_shadow = FALSE,
inverse_header_color = inverse_text_color,
inverse_link_color = link_color,
title_slide_text_color = secondary_color,
title_slide_background_color = primary_color,
title_slide_background_image = NULL,
title_slide_background_size = NULL,
title_slide_background_position = NULL,
footnote_color = NULL,
footnote_font_size = "0.9em",
footnote_position_bottom = "60px",
left_column_subtle_color = apply_alpha(secondary_color, 0.6),
left_column_selected_color = secondary_color,
blockquote_left_border_color = apply_alpha(secondary_color, 0.5),
table_border_color = "#666",
table_row_border_color = "#ddd",
table_row_even_background_color = lighten_color(primary_color, 0.9),
base_font_size = "20px",
text_font_size = "1rem",
header_h1_font_size = "2.75rem",
header_h2_font_size = "2.25rem",
header_h3_font_size = "1.75rem",
header_background_auto = FALSE,
header_background_color = header_color,
header_background_text_color = background_color,
header_background_padding = NULL,
header_background_content_padding_top = "7rem",
header_background_ignore_classes = c("normal", "inverse", "title", "middle", "bottom"),
text_slide_number_font_size = "0.9rem",
text_font_google = NULL,
text_font_family = xaringanthemer_font_default("text_font_family"),
text_font_weight = xaringanthemer_font_default("text_font_weight"),
text_bold_font_weight = "bold",
text_font_url = xaringanthemer_font_default("text_font_url"),
text_font_family_fallback = xaringanthemer_font_default("text_font_family_fallback"),
text_font_base = "sans-serif",
header_font_google = NULL,
header_font_family = xaringanthemer_font_default("header_font_family"),
header_font_weight = xaringanthemer_font_default("header_font_weight"),
header_font_family_fallback = "Georgia, serif",
header_font_url = xaringanthemer_font_default("header_font_url"),
code_font_google = NULL,
code_font_family = xaringanthemer_font_default("code_font_family"),
code_font_size = "0.9rem",
code_font_url = xaringanthemer_font_default("code_font_url"),
code_font_family_fallback = xaringanthemer_font_default("code_font_family_fallback"),
link_decoration = "none",
colors = NULL,
extra_css = NULL,
extra_fonts = NULL,
outfile = "xaringan-themer.css"
)
The CSS styles are written to the file path provided in outfile
(by default to xaringan-themer.css
). If outfile
is NULL
, the CSS is
returned directly as a character string.
Duotone Primary Color. Defaults to #1F4257. Used in
multiple CSS rules. The value of this variable is also stored as a CSS
variable that can be referenced with var(--primary)
in any argument of a
style function or in custom CSS.
Duotone Secondary Color. Defaults to #F97B64. Used in
multiple CSS rules. The value of this variable is also stored as a CSS
variable that can be referenced with var(--secondary)
in any argument of
a style function or in custom CSS.
Text Color. Defaults to
choose_dark_or_light(primary_color, darken_color(primary_color, 0.9), lighten_color(secondary_color, 0.99))
.
Modifies the body
element. The value of this variable is also stored as
a CSS variable that can be referenced with var(--text_color)
in any
argument of a style function or in custom CSS.
Header Color. Defaults to secondary_color
. Modifies
the h1, h2, h3
elements. The value of this variable is also stored as a
CSS variable that can be referenced with var(--header-color)
in any
argument of a style function or in custom CSS.
Slide Background Color. Defaults to primary_color
.
Modifies the .remark-slide-content
class. The value of this variable is
also stored as a CSS variable that can be referenced with
var(--background-color)
in any argument of a style function or in custom
CSS.
Link Color. Defaults to secondary_color
. Modifies the
a, a > code
elements. The value of this variable is also stored as a CSS
variable that can be referenced with var(--link-color)
in any argument
of a style function or in custom CSS.
Bold Text Color. Defaults to secondary_color
.
Modifies the strong
element. The value of this variable is also stored
as a CSS variable that can be referenced with var(--text-bold-color)
in
any argument of a style function or in custom CSS.
Slide Number Color. Defaults to text_color
.
Modifies the .remark-slide-number
class.
Slide Padding in top right [bottom left]
format. Defaults
to 16px 64px 16px 64px. Modifies the .remark-slide-content
class.
Accepts CSS
padding
property values.
Background image applied to each and every slide.
Set title_slide_background_image = "none"
to remove the background image
from the title slide. Defaults to NULL
. Modifies the
.remark-slide-content
class.
Background image size, requires background_image
to
be set. If background_image
is set, background_size
will default to
cover
so the background fills the screen. If both background_image
and
background_position
are set, will default to 100 percent. Defaults to
NULL
. Modifies the .remark-slide-content
class. Accepts CSS
background-size
property values.
Background image position, requires
background_image
to be set, and it is recommended to adjust
background_size
. Defaults to NULL
. Modifies the
.remark-slide-content
class. Accepts CSS
background-position
property values.
Code Line Highlight. Defaults to
rgba(255,255,0,0.5). Modifies the .remark-code-line-highlighted
class.
The value of this variable is also stored as a CSS variable that can be
referenced with var(--code-highlight-color)
in any argument of a style
function or in custom CSS.
Inline Code Color. Defaults to secondary_color
.
Modifies the .remark-inline-code
class.
Inline Code Background Color. Defaults
to NULL
. Modifies the .remark-inline-code
class.
Inline Code Text Font Size. Defaults to 1em.
Modifies the .remark-inline-code
class. Accepts CSS
font-size
property values. The value of this variable is also stored as a CSS
variable that can be referenced with var(--code-inline-font-size)
in any
argument of a style function or in custom CSS.
Inverse Background Color. Defaults to
secondary_color
. Modifies the .inverse
class. The value of this
variable is also stored as a CSS variable that can be referenced with
var(--inverse-background-color)
in any argument of a style function or
in custom CSS.
Inverse Text Color. Defaults to primary_color
.
Modifies the .inverse
class. The value of this variable is also stored
as a CSS variable that can be referenced with var(--inverse-text-color)
in any argument of a style function or in custom CSS.
Enables Shadow on text of inverse slides.
Defaults to FALSE
. Modifies the .inverse
class.
Inverse Header Color. Defaults to
inverse_text_color
. Modifies the .inverse h1, .inverse h2, .inverse h3
classes. The value of this variable is also stored as a CSS variable that
can be referenced with var(--inverse-header-color)
in any argument of a
style function or in custom CSS.
Inverse Link Color. Defaults to link_color
.
Modifies the .inverse a, .inverse a > code
classes. The value of this
variable is also stored as a CSS variable that can be referenced with
var(--inverse-link-color)
in any argument of a style function or in
custom CSS.
Title Slide Text Color. Defaults to
secondary_color
. Modifies the .title-slide
class. The value of this
variable is also stored as a CSS variable that can be referenced with
var(--title-slide-text-color)
in any argument of a style function or in
custom CSS.
Title Slide Background Color. Defaults
to primary_color
. Modifies the .title-slide
class. The value of this
variable is also stored as a CSS variable that can be referenced with
var(--title-slide-background-color)
in any argument of a style function
or in custom CSS.
Title Slide Background Image URL.
Defaults to NULL
. Modifies the .title-slide
class.
Title Slide Background Image Size,
defaults to "cover" if background image is set. Defaults to NULL
.
Modifies the .title-slide
class. Accepts CSS
background-size
property values.
Title Slide Background Image
Position. Defaults to NULL
. Modifies the .title-slide
class. Accepts
CSS
background-position
property values.
Footnote text color (if NA
, then it will be the same
color as text_color
). Defaults to NULL
. Modifies the .footnote
class.
Footnote font size. Defaults to 0.9em. Modifies
the .footnote
class. Accepts CSS
font-size
property values.
Footnote location from bottom of screen.
Defaults to 60px. Modifies the .footnote
class. Accepts CSS
position
property values.
Left Column Text (not last). Defaults to
apply_alpha(secondary_color, 0.6)
. Modifies the
.left-column h2, .left-column h3
classes.
Left Column Current Selection. Defaults to
secondary_color
. Modifies the
.left-column h2:last-of-type, .left-column h3:last-child
classes.
Blockquote Left Border Color. Defaults
to apply_alpha(secondary_color, 0.5)
. Modifies the blockquote
element.
Table top/bottom border. Defaults to #666.
Modifies the table: border-top, border-bottom
elements.
Table row inner bottom border. Defaults to
#ddd. Modifies the table thead th: border-bottom
elements.
Table Even Row Background Color.
Defaults to lighten_color(primary_color, 0.9)
. Modifies the
thead, tfoot, tr:nth-child(even)
elements.
Base Font Size for All Slide Elements (must be px
).
Defaults to 20px. Modifies the html
element. The value of this variable
is also stored as a CSS variable that can be referenced with
var(--base-font-size)
in any argument of a style function or in custom
CSS.
Slide Body Text Font Size. Defaults to 1rem. Modifies
the .remark-slide-content
class. Accepts CSS
font-size
property values. The value of this variable is also stored as a CSS
variable that can be referenced with var(--text-font-size)
in any
argument of a style function or in custom CSS.
h1 Header Text Font Size. Defaults to 2.75rem.
Modifies the .remark-slide-content h1
class. Accepts CSS
font-size
property values. The value of this variable is also stored as a CSS
variable that can be referenced with var(--header-h1-font-size)
in any
argument of a style function or in custom CSS.
h2 Header Text Font Size. Defaults to 2.25rem.
Modifies the .remark-slide-content h2
class. Accepts CSS
font-size
property values. The value of this variable is also stored as a CSS
variable that can be referenced with var(--header-h2-font-size)
in any
argument of a style function or in custom CSS.
h3 Header Text Font Size. Defaults to 1.75rem.
Modifies the .remark-slide-content h3
class. Accepts CSS
font-size
property values. The value of this variable is also stored as a CSS
variable that can be referenced with var(--header-h3-font-size)
in any
argument of a style function or in custom CSS.
Add background under slide title automatically
for h1 header elements. If not enabled, use class: header_background
to
enable. Defaults to FALSE
.
Background Color for h1 Header with
Background. Defaults to header_color
. Modifies the
.remark-slide-content h1
class. The value of this variable is also
stored as a CSS variable that can be referenced with
var(--header-background-color)
in any argument of a style function or in
custom CSS.
Text Color for h1 Header with
Background. Defaults to background_color
. Modifies the
.remark-slide-content h1
class. The value of this variable is also
stored as a CSS variable that can be referenced with
var(--header-background-text-color)
in any argument of a style function
or in custom CSS.
Padding for h1 Header with Background.
Defaults to NULL
. Modifies the .remark-slide-content h1
class. Accepts
CSS padding
property values.
Top Padding for Content in
Slide with Header with Background. Defaults to 7rem. Modifies the
.remark-slide-content
class.
Slide Classes Where Header with
Background will not be Applied. Defaults to
c('normal', 'inverse', 'title', 'middle', 'bottom')
. Modifies the
.remark-slide-content
class.
Slide Number Text Font Size. Defaults to
0.9rem. Modifies the .remark-slide-number
class. Accepts CSS
font-size
property values.
Use google_font()
to specify body font. Defaults
to NULL
. Modifies the body
element.
Body Text Font Family (xaringan default is
'Droid Serif'
). Defaults to
xaringanthemer_font_default("text_font_family")
. Modifies the body
element. The value of this variable is also stored as a CSS variable that
can be referenced with var(--text-font-family)
in any argument of a
style function or in custom CSS.
Body Text Font Weight. Defaults to
xaringanthemer_font_default("text_font_weight")
. Modifies the body
element. Accepts CSS
font-weight
property values.
Body Bold Text Font Weight. Defaults to bold.
Modifies the strong
element.
Body Text Font URL(s). Defaults to
xaringanthemer_font_default("text_font_url")
. Modifies the
@import url()
elements.
Body Text Font Fallbacks. Defaults to
xaringanthemer_font_default("text_font_family_fallback")
. Modifies the
body
element. The value of this variable is also stored as a CSS
variable that can be referenced with var(--text-font-family-fallback)
in
any argument of a style function or in custom CSS.
Body Text Base Font (Total Failure Fallback). Defaults
to sans-serif. Modifies the body
element. The value of this variable is
also stored as a CSS variable that can be referenced with
var(--text-font-base)
in any argument of a style function or in custom
CSS.
Use google_font()
to specify header font.
Defaults to NULL
. Modifies the body
element.
Header Font Family (xaringan default is
'Yanone Kaffeesatz'
). Defaults to
xaringanthemer_font_default("header_font_family")
. Modifies the
h1, h2, h3
elements. The value of this variable is also stored as a CSS
variable that can be referenced with var(--header-font-family)
in any
argument of a style function or in custom CSS.
Header Font Weight. Defaults to
xaringanthemer_font_default("header_font_weight")
. Modifies the
h1, h2, h3
elements. Accepts CSS
font-weight
property values.
Header Font Family Fallback. Defaults to
Georgia, serif. Modifies the h1, h2, h3
elements. The value of this
variable is also stored as a CSS variable that can be referenced with
var(--header-font-family-fallback)
in any argument of a style function
or in custom CSS.
Header Font URL. Defaults to
xaringanthemer_font_default("header_font_url")
. Modifies the
@import url
elements.
Use google_font()
to specify code font. Defaults
to NULL
. Modifies the body
element.
Code Font Family. Defaults to
xaringanthemer_font_default("code_font_family")
. Modifies the
.remark-code, .remark-inline-code
classes. The value of this variable is
also stored as a CSS variable that can be referenced with
var(--code-font-family)
in any argument of a style function or in custom
CSS.
Code Text Font Size. Defaults to 0.9rem. Modifies the
.remark-inline
class. Accepts CSS
font-size
property values. The value of this variable is also stored as a CSS
variable that can be referenced with var(--code-font-size)
in any
argument of a style function or in custom CSS.
Code Font URL. Defaults to
xaringanthemer_font_default("code_font_url")
. Modifies the @import url
elements.
Code Font Fallback. Defaults to
xaringanthemer_font_default("code_font_family_fallback")
. Modifies the
.remark-code, .remark-inline-code
classes.
Text decoration of links. Defaults to none. Modifies
the a, a > code
elements. Accepts CSS
text-decoration
property values.
A named vector of custom colors. The names of the colors
become CSS variables and classes that can be used within your slides.
For example, colors = c(blue = "#bad4ed")
adds a CSS variable
--blue
, a .blue
CSS class that applies the color to the text or
foreground color, and a .bg-blue
CSS class that applies the color
to the background.
A named list of CSS definitions each containing a named list
of CSS property-value pairs, i.e.
list(".class-id" = list("css-property" = "value"))
.
A list of additional fonts to import, each list element
can be either a URL as a character string or a call to
google_font()
. To use a font imported in extra_fonts
, you
will need to write custom CSS rules that apply the font to an element or
class with the font-family
property. See the Fonts section of
vignette("xaringanthemer")
for an example.
Customized xaringan CSS output file name, default is "xaringan-themer.css"
To use the styles created by this theme function, make sure
that you use xaringan-themer.css
as your CSS file in your slides' YAML
header. If you change the name of the output file using the outfile
argument, use that name instead of the default file name.
output:
xaringan::moon_reader:
css: xaringan-themer.css
Other themes:
style_duo_accent_inverse()
,
style_duo_accent()
,
style_mono_accent_inverse()
,
style_mono_accent()
,
style_mono_dark()
,
style_mono_light()
,
style_solarized_dark()
,
style_solarized_light()
,
xaringanthemer_font_default()
Other Duotone themes:
style_duo_accent_inverse()
,
style_duo_accent()
# Create a xaringan style in a temporary file
xaringan_themer_css <- tempfile("xaringan-themer-", fileext = ".css")
style_duo(
primary_color = "#1f4257",
secondary_color = "#f97b64",
outfile = xaringan_themer_css # omit in your slides to write the
# styles to xaringan-themer.css
)
# View the CSS:
# file.edit(xaringan_themer_css)
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