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    <div class="page-header">
    <h1>Duotone Theme</h1>
    <small class="dont-index">Source: <a href='https://github.com/gadenbuie/xaringanthemer/blob/master/R/style_duo.R'><code>R/style_duo.R</code></a></small>
    <div class="hidden name"><code>style_duo.Rd</code></div>
    </div>

    <div class="ref-description">
    <p>A duotone theme designed to work well with two complementary
colors.</p>
    </div>

    <pre class="usage"><span class='fu'>style_duo</span>(
  <span class='kw'>primary_color</span> <span class='kw'>=</span> <span class='st'>"#1F4257"</span>,
  <span class='kw'>secondary_color</span> <span class='kw'>=</span> <span class='st'>"#F97B64"</span>,
  <span class='kw'>text_color</span> <span class='kw'>=</span> <span class='fu'><a href='choose_dark_or_light.html'>choose_dark_or_light</a></span>(<span class='no'>primary_color</span>, <span class='fu'><a href='lighten_darken_color.html'>darken_color</a></span>(<span class='no'>primary_color</span>, <span class='fl'>0.9</span>),
    <span class='fu'><a href='lighten_darken_color.html'>lighten_color</a></span>(<span class='no'>secondary_color</span>, <span class='fl'>0.99</span>)),
  <span class='kw'>header_color</span> <span class='kw'>=</span> <span class='no'>secondary_color</span>,
  <span class='kw'>background_color</span> <span class='kw'>=</span> <span class='no'>primary_color</span>,
  <span class='kw'>link_color</span> <span class='kw'>=</span> <span class='no'>secondary_color</span>,
  <span class='kw'>text_bold_color</span> <span class='kw'>=</span> <span class='no'>secondary_color</span>,
  <span class='kw'>text_slide_number_color</span> <span class='kw'>=</span> <span class='no'>text_color</span>,
  <span class='kw'>padding</span> <span class='kw'>=</span> <span class='st'>"16px 64px 16px 64px"</span>,
  <span class='kw'>background_image</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>background_size</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>background_position</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>code_highlight_color</span> <span class='kw'>=</span> <span class='st'>"rgba(255,255,0,0.5)"</span>,
  <span class='kw'>code_inline_color</span> <span class='kw'>=</span> <span class='no'>secondary_color</span>,
  <span class='kw'>code_inline_background_color</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>code_inline_font_size</span> <span class='kw'>=</span> <span class='st'>"1em"</span>,
  <span class='kw'>inverse_background_color</span> <span class='kw'>=</span> <span class='no'>secondary_color</span>,
  <span class='kw'>inverse_text_color</span> <span class='kw'>=</span> <span class='no'>primary_color</span>,
  <span class='kw'>inverse_text_shadow</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>,
  <span class='kw'>inverse_header_color</span> <span class='kw'>=</span> <span class='no'>primary_color</span>,
  <span class='kw'>title_slide_text_color</span> <span class='kw'>=</span> <span class='no'>secondary_color</span>,
  <span class='kw'>title_slide_background_color</span> <span class='kw'>=</span> <span class='no'>primary_color</span>,
  <span class='kw'>title_slide_background_image</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>title_slide_background_size</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>title_slide_background_position</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>footnote_color</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>footnote_font_size</span> <span class='kw'>=</span> <span class='st'>"0.9em"</span>,
  <span class='kw'>footnote_position_bottom</span> <span class='kw'>=</span> <span class='st'>"60px"</span>,
  <span class='kw'>left_column_subtle_color</span> <span class='kw'>=</span> <span class='fu'><a href='apply_alpha.html'>apply_alpha</a></span>(<span class='no'>secondary_color</span>, <span class='fl'>0.6</span>),
  <span class='kw'>left_column_selected_color</span> <span class='kw'>=</span> <span class='no'>secondary_color</span>,
  <span class='kw'>blockquote_left_border_color</span> <span class='kw'>=</span> <span class='fu'><a href='apply_alpha.html'>apply_alpha</a></span>(<span class='no'>secondary_color</span>, <span class='fl'>0.5</span>),
  <span class='kw'>table_border_color</span> <span class='kw'>=</span> <span class='st'>"#666"</span>,
  <span class='kw'>table_row_border_color</span> <span class='kw'>=</span> <span class='st'>"#ddd"</span>,
  <span class='kw'>table_row_even_background_color</span> <span class='kw'>=</span> <span class='fu'><a href='lighten_darken_color.html'>lighten_color</a></span>(<span class='no'>primary_color</span>, <span class='fl'>0.9</span>),
  <span class='kw'>base_font_size</span> <span class='kw'>=</span> <span class='st'>"20px"</span>,
  <span class='kw'>text_font_size</span> <span class='kw'>=</span> <span class='st'>"1rem"</span>,
  <span class='kw'>header_h1_font_size</span> <span class='kw'>=</span> <span class='st'>"2.75rem"</span>,
  <span class='kw'>header_h2_font_size</span> <span class='kw'>=</span> <span class='st'>"2.25rem"</span>,
  <span class='kw'>header_h3_font_size</span> <span class='kw'>=</span> <span class='st'>"1.75rem"</span>,
  <span class='kw'>header_background_auto</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>,
  <span class='kw'>header_background_color</span> <span class='kw'>=</span> <span class='no'>header_color</span>,
  <span class='kw'>header_background_text_color</span> <span class='kw'>=</span> <span class='no'>background_color</span>,
  <span class='kw'>header_background_padding</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>header_background_content_padding_top</span> <span class='kw'>=</span> <span class='st'>"7rem"</span>,
  <span class='kw'>header_background_ignore_classes</span> <span class='kw'>=</span> <span class='fu'><a href='https://rdrr.io/r/base/c.html'>c</a></span>(<span class='st'>"normal"</span>, <span class='st'>"inverse"</span>, <span class='st'>"title"</span>, <span class='st'>"middle"</span>, <span class='st'>"bottom"</span>),
  <span class='kw'>text_slide_number_font_size</span> <span class='kw'>=</span> <span class='st'>"0.9em"</span>,
  <span class='kw'>text_font_google</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>text_font_family</span> <span class='kw'>=</span> <span class='st'>"Noto Sans"</span>,
  <span class='kw'>text_font_weight</span> <span class='kw'>=</span> <span class='st'>"normal"</span>,

    <span class='kw'>text_font_url</span> <span class='kw'>=</span> <span class='st'>"https://fonts.googleapis.com/css?family=Noto+Sans:400,400i,700,700i&amp;display=swap"</span>,

    <span class='kw'>text_font_family_fallback</span> <span class='kw'>=</span> <span class='st'>"-apple-system, BlinkMacSystemFont, avenir next, avenir, helvetica neue, helvetica, Ubuntu, roboto, noto, segoe ui, arial"</span>,
  <span class='kw'>text_font_base</span> <span class='kw'>=</span> <span class='st'>"sans-serif"</span>,
  <span class='kw'>header_font_google</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>header_font_family</span> <span class='kw'>=</span> <span class='st'>"Cabin"</span>,
  <span class='kw'>header_font_weight</span> <span class='kw'>=</span> <span class='st'>"600"</span>,

    <span class='kw'>header_font_url</span> <span class='kw'>=</span> <span class='st'>"https://fonts.googleapis.com/css?family=Cabin:600,600i&amp;display=swap"</span>,
  <span class='kw'>code_font_google</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>code_font_family</span> <span class='kw'>=</span> <span class='st'>"Source Code Pro"</span>,
  <span class='kw'>code_font_size</span> <span class='kw'>=</span> <span class='st'>"0.9rem"</span>,

    <span class='kw'>code_font_url</span> <span class='kw'>=</span> <span class='st'>"https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700&amp;display=swap"</span>,
  <span class='kw'>code_font_family_fallback</span> <span class='kw'>=</span> <span class='st'>"Menlo, Consolas, Monaco, Liberation Mono, Lucida Console"</span>,
  <span class='kw'>colors</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>extra_css</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>extra_fonts</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>outfile</span> <span class='kw'>=</span> <span class='st'>"xaringan-themer.css"</span>
)</pre>

    <h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a>Arguments</h2>
    <table class="ref-arguments">
    <colgroup><col class="name" /><col class="desc" /></colgroup>
    <tr>
      <th>primary_color</th>
      <td><p>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 <code><a href='https://rdrr.io/r/stats/cor.html'>var(--primary)</a></code> in any argument of a
style function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>secondary_color</th>
      <td><p>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 <code><a href='https://rdrr.io/r/stats/cor.html'>var(--secondary)</a></code> in any argument of
a style function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>text_color</th>
      <td><p>Text Color. Defaults to
<code><a href='choose_dark_or_light.html'>choose_dark_or_light(primary_color, darken_color(primary_color, 0.9), lighten_color(secondary_color, 0.99))</a></code>.
Modifies the <code>body</code> element. The value of this variable is also stored as
a CSS variable that can be referenced with <code><a href='https://rdrr.io/r/stats/cor.html'>var(--text_color)</a></code> in any
argument of a style function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>header_color</th>
      <td><p>Header Color. Defaults to <code>secondary_color</code>. Modifies
the <code>h1, h2, h3</code> elements. The value of this variable is also stored as a
CSS variable that can be referenced with <code><a href='https://rdrr.io/r/stats/cor.html'>var(--header-color)</a></code> in any
argument of a style function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>background_color</th>
      <td><p>Slide Background Color. Defaults to <code>primary_color</code>.
Modifies the <code>.remark-slide-content</code> class. The value of this variable is
also stored as a CSS variable that can be referenced with
<code><a href='https://rdrr.io/r/stats/cor.html'>var(--background-color)</a></code> in any argument of a style function or in custom
CSS.</p></td>
    </tr>
    <tr>
      <th>link_color</th>
      <td><p>Link Color. Defaults to <code>secondary_color</code>. Modifies the
<code>a, a &gt; code</code> elements. The value of this variable is also stored as a CSS
variable that can be referenced with <code><a href='https://rdrr.io/r/stats/cor.html'>var(--link-color)</a></code> in any argument
of a style function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>text_bold_color</th>
      <td><p>Bold Text Color. Defaults to <code>secondary_color</code>.
Modifies the <code>strong</code> element. The value of this variable is also stored
as a CSS variable that can be referenced with <code><a href='https://rdrr.io/r/stats/cor.html'>var(--text-bold-color)</a></code> in
any argument of a style function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>text_slide_number_color</th>
      <td><p>Slide Number Color. Defaults to <code>text_color</code>.
Modifies the <code>.remark-slide-number</code> class.</p></td>
    </tr>
    <tr>
      <th>padding</th>
      <td><p>Slide Padding in <code>top right [bottom left]</code> format. Defaults
to 16px 64px 16px 64px. Modifies the <code>.remark-slide-content</code> class.
Accepts CSS
<a href='https://developer.mozilla.org/en-US/docs/Web/CSS/padding'>padding</a>
property values.</p></td>
    </tr>
    <tr>
      <th>background_image</th>
      <td><p>Background image applied to each <em>and every</em> slide.
Set <code>title_slide_background_image = "none"</code> to remove the background image
from the title slide. Defaults to <code>NULL</code>. Modifies the
<code>.remark-slide-content</code> class.</p></td>
    </tr>
    <tr>
      <th>background_size</th>
      <td><p>Background image size, requires <code>background_image</code> to
be set. If <code>background_image</code> is set, <code>background_size</code> will default to
<code>cover</code> so the backround fills the screen. If both <code>background_image</code> and
<code>background_position</code> are set, will default to 100 percent. Defaults to
<code>NULL</code>. Modifies the <code>.remark-slide-content</code> class. Accepts CSS
<a href='https://developer.mozilla.org/en-US/docs/Web/CSS/background-size'>background-size</a>
property values.</p></td>
    </tr>
    <tr>
      <th>background_position</th>
      <td><p>Background image position, requires
<code>background_image</code> to be set, and it is recommended to adjust
<code>background_size</code>. Defaults to <code>NULL</code>. Modifies the
<code>.remark-slide-content</code> class. Accepts CSS
<a href='https://developer.mozilla.org/en-US/docs/Web/CSS/background-position'>background-position</a>
property values.</p></td>
    </tr>
    <tr>
      <th>code_highlight_color</th>
      <td><p>Code Line Highlight. Defaults to
rgba(255,255,0,0.5). Modifies the <code>.remark-code-line-highlighted</code> class.
The value of this variable is also stored as a CSS variable that can be
referenced with <code><a href='https://rdrr.io/r/stats/cor.html'>var(--code-highlight-color)</a></code> in any argument of a style
function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>code_inline_color</th>
      <td><p>Inline Code Color. Defaults to <code>secondary_color</code>.
Modifies the <code>.remark-inline-code</code> class.</p></td>
    </tr>
    <tr>
      <th>code_inline_background_color</th>
      <td><p>Inline Code Background Color. Defaults
to <code>NULL</code>. Modifies the <code>.remark-inline-code</code> class.</p></td>
    </tr>
    <tr>
      <th>code_inline_font_size</th>
      <td><p>Inline Code Text Font Size. Defaults to 1em.
Modifies the <code>.remark-inline-code</code> class. Accepts CSS
<a href='https://developer.mozilla.org/en-US/docs/Web/CSS/font-size'>font-size</a>
property values. The value of this variable is also stored as a CSS
variable that can be referenced with <code><a href='https://rdrr.io/r/stats/cor.html'>var(--code-inline-font-size)</a></code> in any
argument of a style function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>inverse_background_color</th>
      <td><p>Inverse Background Color. Defaults to
<code>secondary_color</code>. Modifies the <code>.inverse</code> class. The value of this
variable is also stored as a CSS variable that can be referenced with
<code><a href='https://rdrr.io/r/stats/cor.html'>var(--inverse-background-color)</a></code> in any argument of a style function or
in custom CSS.</p></td>
    </tr>
    <tr>
      <th>inverse_text_color</th>
      <td><p>Inverse Text Color. Defaults to <code>primary_color</code>.
Modifies the <code>.inverse</code> class. The value of this variable is also stored
as a CSS variable that can be referenced with <code><a href='https://rdrr.io/r/stats/cor.html'>var(--inverse-text-color)</a></code>
in any argument of a style function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>inverse_text_shadow</th>
      <td><p>Enables Shadow on text of inverse slides.
Defaults to <code>FALSE</code>. Modifies the <code>.inverse</code> class.</p></td>
    </tr>
    <tr>
      <th>inverse_header_color</th>
      <td><p>Inverse Header Color. Defaults to
<code>primary_color</code>. Modifies the <code>.inverse h1, .inverse h2, .inverse h3</code>
classes. The value of this variable is also stored as a CSS variable that
can be referenced with <code><a href='https://rdrr.io/r/stats/cor.html'>var(--inverse-header-color)</a></code> in any argument of a
style function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>title_slide_text_color</th>
      <td><p>Title Slide Text Color. Defaults to
<code>secondary_color</code>. Modifies the <code>.title-slide</code> class. The value of this
variable is also stored as a CSS variable that can be referenced with
<code><a href='https://rdrr.io/r/stats/cor.html'>var(--title-slide-text-color)</a></code> in any argument of a style function or in
custom CSS.</p></td>
    </tr>
    <tr>
      <th>title_slide_background_color</th>
      <td><p>Title Slide Background Color. Defaults
to <code>primary_color</code>. Modifies the <code>.title-slide</code> class. The value of this
variable is also stored as a CSS variable that can be referenced with
<code><a href='https://rdrr.io/r/stats/cor.html'>var(--title-slide-background-color)</a></code> in any argument of a style function
or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>title_slide_background_image</th>
      <td><p>Title Slide Background Image URL.
Defaults to <code>NULL</code>. Modifies the <code>.title-slide</code> class.</p></td>
    </tr>
    <tr>
      <th>title_slide_background_size</th>
      <td><p>Title Slide Background Image Size,
defaults to "cover" if background image is set. Defaults to <code>NULL</code>.
Modifies the <code>.title-slide</code> class. Accepts CSS
<a href='https://developer.mozilla.org/en-US/docs/Web/CSS/background-size'>background-size</a>
property values.</p></td>
    </tr>
    <tr>
      <th>title_slide_background_position</th>
      <td><p>Title Slide Background Image
Position. Defaults to <code>NULL</code>. Modifies the <code>.title-slide</code> class. Accepts
CSS
<a href='https://developer.mozilla.org/en-US/docs/Web/CSS/background-position'>background-position</a>
property values.</p></td>
    </tr>
    <tr>
      <th>footnote_color</th>
      <td><p>Footnote text color (if <code>NA</code>, then it will be the same
color as <code>text_color</code>). Defaults to <code>NULL</code>. Modifies the <code>.footnote</code>
class.</p></td>
    </tr>
    <tr>
      <th>footnote_font_size</th>
      <td><p>Footnote font size. Defaults to 0.9em. Modifies
the <code>.footnote</code> class. Accepts CSS
<a href='https://developer.mozilla.org/en-US/docs/Web/CSS/font-size'>font-size</a>
property values.</p></td>
    </tr>
    <tr>
      <th>footnote_position_bottom</th>
      <td><p>Footnote location from bottom of screen.
Defaults to 60px. Modifies the <code>.footnote</code> class. Accepts CSS
<a href='https://developer.mozilla.org/en-US/docs/Web/CSS/position_value'>position</a>
property values.</p></td>
    </tr>
    <tr>
      <th>left_column_subtle_color</th>
      <td><p>Left Column Text (not last). Defaults to
<code><a href='apply_alpha.html'>apply_alpha(secondary_color, 0.6)</a></code>. Modifies the
<code>.left-column h2, .left-column h3</code> classes.</p></td>
    </tr>
    <tr>
      <th>left_column_selected_color</th>
      <td><p>Left Column Current Selection. Defaults to
<code>secondary_color</code>. Modifies the
<code>.left-column h2:last-of-type, .left-column h3:last-child</code> classes.</p></td>
    </tr>
    <tr>
      <th>blockquote_left_border_color</th>
      <td><p>Blockquote Left Border Color. Defaults
to <code><a href='apply_alpha.html'>apply_alpha(secondary_color, 0.5)</a></code>. Modifies the <code>blockquote</code> element.</p></td>
    </tr>
    <tr>
      <th>table_border_color</th>
      <td><p>Table top/bottom border. Defaults to #666.
Modifies the <code>table: border-top, border-bottom</code> elements.</p></td>
    </tr>
    <tr>
      <th>table_row_border_color</th>
      <td><p>Table row inner bottom border. Defaults to
#ddd. Modifies the <code>table thead th: border-bottom</code> elements.</p></td>
    </tr>
    <tr>
      <th>table_row_even_background_color</th>
      <td><p>Table Even Row Background Color.
Defaults to <code><a href='lighten_darken_color.html'>lighten_color(primary_color, 0.9)</a></code>. Modifies the
<code>thead, tfoot, tr:nth-child(even)</code> elements.</p></td>
    </tr>
    <tr>
      <th>base_font_size</th>
      <td><p>Base Font Size for All Slide Elements (must be <code>px</code>).
Defaults to 20px. Modifies the <code>html</code> element. The value of this variable
is also stored as a CSS variable that can be referenced with
<code><a href='https://rdrr.io/r/stats/cor.html'>var(--base-font-size)</a></code> in any argument of a style function or in custom
CSS.</p></td>
    </tr>
    <tr>
      <th>text_font_size</th>
      <td><p>Slide Body Text Font Size. Defaults to 1rem. Modifies
the <code>.remark-slide-content</code> class. Accepts CSS
<a href='https://developer.mozilla.org/en-US/docs/Web/CSS/font-size'>font-size</a>
property values. The value of this variable is also stored as a CSS
variable that can be referenced with <code><a href='https://rdrr.io/r/stats/cor.html'>var(--text-font-size)</a></code> in any
argument of a style function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>header_h1_font_size</th>
      <td><p>h1 Header Text Font Size. Defaults to 2.75rem.
Modifies the <code>.remark-slide-content h1</code> class. Accepts CSS
<a href='https://developer.mozilla.org/en-US/docs/Web/CSS/font-size'>font-size</a>
property values. The value of this variable is also stored as a CSS
variable that can be referenced with <code><a href='https://rdrr.io/r/stats/cor.html'>var(--header-h1-font-size)</a></code> in any
argument of a style function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>header_h2_font_size</th>
      <td><p>h2 Header Text Font Size. Defaults to 2.25rem.
Modifies the <code>.remark-slide-content h2</code> class. Accepts CSS
<a href='https://developer.mozilla.org/en-US/docs/Web/CSS/font-size'>font-size</a>
property values. The value of this variable is also stored as a CSS
variable that can be referenced with <code><a href='https://rdrr.io/r/stats/cor.html'>var(--header-h2-font-size)</a></code> in any
argument of a style function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>header_h3_font_size</th>
      <td><p>h3 Header Text Font Size. Defaults to 1.75rem.
Modifies the <code>.remark-slide-content h3</code> class. Accepts CSS
<a href='https://developer.mozilla.org/en-US/docs/Web/CSS/font-size'>font-size</a>
property values. The value of this variable is also stored as a CSS
variable that can be referenced with <code><a href='https://rdrr.io/r/stats/cor.html'>var(--header-h3-font-size)</a></code> in any
argument of a style function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>header_background_auto</th>
      <td><p>Add background under slide title automatically
for h1 header elements. If not enabled, use <code>class: header_background</code> to
enable. Defaults to <code>FALSE</code>.</p></td>
    </tr>
    <tr>
      <th>header_background_color</th>
      <td><p>Background Color for h1 Header with
Background. Defaults to <code>header_color</code>. Modifies the
<code>.remark-slide-content h1</code> class. The value of this variable is also
stored as a CSS variable that can be referenced with
<code><a href='https://rdrr.io/r/stats/cor.html'>var(--header-background-color)</a></code> in any argument of a style function or in
custom CSS.</p></td>
    </tr>
    <tr>
      <th>header_background_text_color</th>
      <td><p>Text Color for h1 Header with
Background. Defaults to <code>background_color</code>. Modifies the
<code>.remark-slide-content h1</code> class. The value of this variable is also
stored as a CSS variable that can be referenced with
<code><a href='https://rdrr.io/r/stats/cor.html'>var(--header-background-text-color)</a></code> in any argument of a style function
or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>header_background_padding</th>
      <td><p>Padding for h1 Header with Background.
Defaults to <code>NULL</code>. Modifies the <code>.remark-slide-content h1</code> class. Accepts
CSS <a href='https://developer.mozilla.org/en-US/docs/Web/CSS/padding'>padding</a>
property values.</p></td>
    </tr>
    <tr>
      <th>header_background_content_padding_top</th>
      <td><p>Top Padding for Content in
Slide with Header with Background. Defaults to 7rem. Modifies the
<code>.remark-slide-content</code> class.</p></td>
    </tr>
    <tr>
      <th>header_background_ignore_classes</th>
      <td><p>Slide Classes Where Header with
Background will not be Applied. Defaults to
<code><a href='https://rdrr.io/r/base/c.html'>c('normal', 'inverse', 'title', 'middle', 'bottom')</a></code>. Modifies the
<code>.remark-slide-content</code> class.</p></td>
    </tr>
    <tr>
      <th>text_slide_number_font_size</th>
      <td><p>Slide Number Text Font Size. Defaults to
0.9em. Modifies the <code>.remark-slide-number</code> class. Accepts CSS
<a href='https://developer.mozilla.org/en-US/docs/Web/CSS/font-size'>font-size</a>
property values.</p></td>
    </tr>
    <tr>
      <th>text_font_google</th>
      <td><p>Use <code><a href='google_font.html'>google_font()</a></code> to specify body font. Defaults
to <code>NULL</code>. Modifies the <code>body</code> element.</p></td>
    </tr>
    <tr>
      <th>text_font_family</th>
      <td><p>Body Text Font Family (xaringan default is
<code>'Droid Serif'</code>). Defaults to Noto Sans. Modifies the <code>body</code> element. The
value of this variable is also stored as a CSS variable that can be
referenced with <code><a href='https://rdrr.io/r/stats/cor.html'>var(--text-font-family)</a></code> in any argument of a style
function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>text_font_weight</th>
      <td><p>Body Text Font Weight. Defaults to normal. Modifies
the <code>body</code> element. Accepts CSS
<a href='https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight'>font-weight</a>
property values.</p></td>
    </tr>
    <tr>
      <th>text_font_url</th>
      <td><p>Body Text Font URL(s). Defaults to
https://fonts.googleapis.com/css?family=Noto+Sans:400,400i,700,700i&amp;display=swap.
Modifies the <code>@import url()</code> elements.</p></td>
    </tr>
    <tr>
      <th>text_font_family_fallback</th>
      <td><p>Body Text Font Fallbacks. Defaults to
-apple-system, BlinkMacSystemFont, avenir next, avenir, helvetica neue,
helvetica, Ubuntu, roboto, noto, segoe ui, arial. Modifies the <code>body</code>
element. The value of this variable is also stored as a CSS variable that
can be referenced with <code><a href='https://rdrr.io/r/stats/cor.html'>var(--text-font-family-fallback)</a></code> in any argument
of a style function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>text_font_base</th>
      <td><p>Body Text Base Font (Total Failure Fallback). Defaults
to sans-serif. Modifies the <code>body</code> element. The value of this variable is
also stored as a CSS variable that can be referenced with
<code><a href='https://rdrr.io/r/stats/cor.html'>var(--text-font-base)</a></code> in any argument of a style function or in custom
CSS.</p></td>
    </tr>
    <tr>
      <th>header_font_google</th>
      <td><p>Use <code><a href='google_font.html'>google_font()</a></code> to specify header font.
Defaults to <code>NULL</code>. Modifies the <code>body</code> element.</p></td>
    </tr>
    <tr>
      <th>header_font_family</th>
      <td><p>Header Font Family (xaringan default is
<code>'Yanone Kaffeesatz'</code>). Defaults to Cabin. Modifies the <code>h1, h2, h3</code>
elements. The value of this variable is also stored as a CSS variable that
can be referenced with <code><a href='https://rdrr.io/r/stats/cor.html'>var(--header-font-family)</a></code> in any argument of a
style function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>header_font_weight</th>
      <td><p>Header Font Weight. Defaults to 600. Modifies the
<code>h1, h2, h3</code> elements. Accepts CSS
<a href='https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight'>font-weight</a>
property values.</p></td>
    </tr>
    <tr>
      <th>header_font_url</th>
      <td><p>Header Font URL. Defaults to
https://fonts.googleapis.com/css?family=Cabin:600,600i&amp;display=swap.
Modifies the <code>@import url</code> elements.</p></td>
    </tr>
    <tr>
      <th>code_font_google</th>
      <td><p>Use <code><a href='google_font.html'>google_font()</a></code> to specify code font. Defaults
to <code>NULL</code>. Modifies the <code>body</code> element.</p></td>
    </tr>
    <tr>
      <th>code_font_family</th>
      <td><p>Code Font Family. Defaults to Source Code Pro.
Modifies the <code>.remark-code, .remark-inline-code</code> classes. The value of
this variable is also stored as a CSS variable that can be referenced with
<code><a href='https://rdrr.io/r/stats/cor.html'>var(--code-font-family)</a></code> in any argument of a style function or in custom
CSS.</p></td>
    </tr>
    <tr>
      <th>code_font_size</th>
      <td><p>Code Text Font Size. Defaults to 0.9rem. Modifies the
<code>.remark-inline</code> class. Accepts CSS
<a href='https://developer.mozilla.org/en-US/docs/Web/CSS/font-size'>font-size</a>
property values. The value of this variable is also stored as a CSS
variable that can be referenced with <code><a href='https://rdrr.io/r/stats/cor.html'>var(--code-font-size)</a></code> in any
argument of a style function or in custom CSS.</p></td>
    </tr>
    <tr>
      <th>code_font_url</th>
      <td><p>Code Font URL. Defaults to
https://fonts.googleapis.com/css?family=Source+Code+Pro:400,700&amp;display=swap.
Modifies the <code>@import url</code> elements.</p></td>
    </tr>
    <tr>
      <th>code_font_family_fallback</th>
      <td><p>Code Font Fallback. Defaults to Menlo,
Consolas, Monaco, Liberation Mono, Lucida Console. Modifies the
<code>.remark-code, .remark-inline-code</code> classes.</p></td>
    </tr>
    <tr>
      <th>colors</th>
      <td><p>A named vector of custom colors. The names of the colors
become CSS variables and classes that can be used within your slides.
For example, <code>colors = c(blue = "#bad4ed")</code> adds a CSS variable
<code>--blue</code>, a <code>.blue</code> CSS class that applies the color to the text or
foreground color, and a <code>.bg-blue</code> CSS class that applies the color
to the background.</p></td>
    </tr>
    <tr>
      <th>extra_css</th>
      <td><p>A named list of CSS definitions each containing a named list
of CSS property-value pairs, i.e.
<code><a href='https://rdrr.io/r/base/list.html'>list(".class-id" = list("css-property" = "value"))</a></code>.</p></td>
    </tr>
    <tr>
      <th>extra_fonts</th>
      <td><p>A list of additional fonts to import, each list element
can be either a URL as a character string or a call to
<code><a href='google_font.html'>google_font</a>()</code>. To use a font imported in <code>extra_fonts</code>, you
will need to write custom CSS rules that apply the font to an element or
class with the <code>font-family</code> property. See the <strong>Fonts</strong> section of
<code><a href='../articles/xaringanthemer.html'>vignette("xaringanthemer")</a></code> for an example.</p></td>
    </tr>
    <tr>
      <th>outfile</th>
      <td><p>Customized xaringan CSS output file name, default is "xaringan-themer.css"</p></td>
    </tr>
    </table>

    <h2 class="hasAnchor" id="usage"><a class="anchor" href="#usage"></a>Usage</h2>

    <p>To use the styles created by this theme function, make sure
that you use <code>xaringan-themer.css</code> as your CSS file in your slides' YAML
header. If you change the name of the output file using the <code>outfile</code>
argument, use that name instead of the default file name.<div class="yaml"></p><pre><span class='no'>output</span>:
<span class='kw pkg'>xaringan</span><span class='kw ns'>::</span><span class='no'><a href='https://rdrr.io/pkg/xaringan/man/moon_reader.html'>moon_reader</a></span>:
  <span class='no'>css</span>: <span class='no'>xaringan</span>-<span class='no'>themer.css</span></pre><p></div></p>
    <h2 class="hasAnchor" id="see-also"><a class="anchor" href="#see-also"></a>See also</h2>

    <div class='dont-index'><p>Other themes: 
<code><a href='style_duo_accent_inverse.html'>style_duo_accent_inverse</a>()</code>,
<code><a href='style_duo_accent.html'>style_duo_accent</a>()</code>,
<code><a href='style_mono_accent_inverse.html'>style_mono_accent_inverse</a>()</code>,
<code><a href='style_mono_accent.html'>style_mono_accent</a>()</code>,
<code><a href='style_mono_dark.html'>style_mono_dark</a>()</code>,
<code><a href='style_mono_light.html'>style_mono_light</a>()</code>,
<code><a href='style_solarized_dark.html'>style_solarized_dark</a>()</code>,
<code><a href='style_solarized_light.html'>style_solarized_light</a>()</code>,
<code><a href='style_xaringan.html'>style_xaringan</a>()</code></p>
<p>Other Duotone themes: 
<code><a href='style_duo_accent_inverse.html'>style_duo_accent_inverse</a>()</code>,
<code><a href='style_duo_accent.html'>style_duo_accent</a>()</code></p></div>

    <h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
    <pre class="examples"><div class='input'><span class='co'># Create a xaringan style in a temporary file</span>
<span class='no'>xaringan_themer_css</span> <span class='kw'>&lt;-</span> <span class='fu'><a href='https://rdrr.io/r/base/tempfile.html'>tempfile</a></span>(<span class='st'>"xaringan-themer-"</span>, <span class='kw'>fileext</span> <span class='kw'>=</span> <span class='st'>".css"</span>)

<span class='fu'>style_duo</span>(
  <span class='kw'>primary_color</span> <span class='kw'>=</span> <span class='st'>"#1f4257"</span>,
  <span class='kw'>secondary_color</span> <span class='kw'>=</span> <span class='st'>"#f97b64"</span>,
  <span class='kw'>outfile</span> <span class='kw'>=</span> <span class='no'>xaringan_themer_css</span> <span class='co'># omit in your slides to write the</span>
                                <span class='co'># styles to xaringan-themer.css</span>
)

<span class='co'># View the CSS:</span>
<span class='co'># file.edit(xaringan_themer_css)</span></div></pre>
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