Deploy from Travis build 51 [ci skip]

Build URL: https://travis-ci.com/gadenbuie/xaringanthemer/builds/158479446
Commit: faee9020cd

dev/pkgdown.yml

   template-variables: template-variables.html
   themes: themes.html
   xaringanthemer: xaringanthemer.html
-last_built: 2020-04-05T03:23Z
+last_built: 2020-04-05T11:41Z
 urls:
   reference: https://pkg.garrickadenbuie.com/xaringanthemer//reference
   article: https://pkg.garrickadenbuie.com/xaringanthemer//articles

dev/reference/style_duo.html

       <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.</p></td>
+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.</p></td>
+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.</p></td>
+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.</p></td>
+<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.</p></td>
+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>
     <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.</p></td>
+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>
     <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.</p></td>
+Modifies the <code>.remark-inline-code</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-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.</p></td>
+<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.</p></td>
+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>
       <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.</p></td>
+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.</p></td>
+<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.</p></td>
+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>
     <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.</p></td>
+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.</p></td>
+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(--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.</p></td>
+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-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.</p></td>
+Modifies the <code>.remark-slide-content h2</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-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.</p></td>
+Modifies the <code>.remark-slide-content h3</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-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>
       <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.</p></td>
+<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.</p></td>
+<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>
     <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.</p></td>
+<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 Fallbacks. Defaults to
 -apple-system, BlinkMacSystemFont, avenir next, avenir, helvetica neue,
 helvetica, Ubuntu, roboto, noto, segoe ui, arial. Modifies the <code>body</code>
-element.</p></td>
+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.</p></td>
+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>
       <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.</p></td>
+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>
     <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.</p></td>
+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.</p></td>
+<code>.remark-inline</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-font-size)</a></code> in any
+argument of a style function or in custom CSS.</p></td>
     </tr>
     <tr>
       <th>code_font_url</th>

dev/reference/style_duo_accent.html

     <tr>
       <th>text_color</th>
       <td><p>Text Color. Defaults to <code>black_color</code>. Modifies the <code>body</code>
-element.</p></td>
+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>primary_color</code>. Modifies the
-<code>h1, h2, h3</code> elements.</p></td>
+<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>white_color</code>.
-Modifies the <code>.remark-slide-content</code> class.</p></td>
+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><a href='choose_dark_or_light.html'>choose_dark_or_light(secondary_color, primary_color, secondary_color)</a></code>.
-Modifies the <code>a, a &gt; code</code> elements.</p></td>
+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><a href='choose_dark_or_light.html'>choose_dark_or_light(secondary_color, primary_color, secondary_color)</a></code>.
-Modifies the <code>strong</code> element.</p></td>
+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>
     <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.</p></td>
+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>
     <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.</p></td>
+Modifies the <code>.remark-inline-code</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-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.</p></td>
+<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><a href='choose_dark_or_light.html'>choose_dark_or_light(secondary_color, black_color, white_color)</a></code>.
-Modifies the <code>.inverse</code> class.</p></td>
+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>
       <th>inverse_header_color</th>
       <td><p>Inverse Header Color. Defaults to
 <code><a href='choose_dark_or_light.html'>choose_dark_or_light(secondary_color, black_color, white_color)</a></code>.
-Modifies the <code>.inverse h1, .inverse h2, .inverse h3</code> classes.</p></td>
+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><a href='choose_dark_or_light.html'>choose_dark_or_light(primary_color, black_color, white_color)</a></code>. Modifies
-the <code>.title-slide</code> class.</p></td>
+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.</p></td>
+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>
     <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.</p></td>
+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.</p></td>
+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(--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.</p></td>
+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-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.</p></td>
+Modifies the <code>.remark-slide-content h2</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-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.</p></td>
+Modifies the <code>.remark-slide-content h3</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-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>
       <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.</p></td>
+<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.</p></td>
+<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>
     <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.</p></td>
+<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 Fallbacks. Defaults to
 -apple-system, BlinkMacSystemFont, avenir next, avenir, helvetica neue,
 helvetica, Ubuntu, roboto, noto, segoe ui, arial. Modifies the <code>body</code>
-element.</p></td>
+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.</p></td>
+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>
       <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.</p></td>
+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>
     <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.</p></td>
+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.</p></td>
+<code>.remark-inline</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-font-size)</a></code> in any
+argument of a style function or in custom CSS.</p></td>
     </tr>
     <tr>
       <th>code_font_url</th>

dev/reference/style_duo_accent_inverse.html

     <tr>
       <th>text_color</th>
       <td><p>Text Color. Defaults to <code>white_color</code>. Modifies the <code>body</code>
-element.</p></td>
+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>primary_color</code>. Modifies the
-<code>h1, h2, h3</code> elements.</p></td>
+<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>black_color</code>.
-Modifies the <code>.remark-slide-content</code> class.</p></td>
+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><a href='choose_dark_or_light.html'>choose_dark_or_light(secondary_color, secondary_color, primary_color)</a></code>.
-Modifies the <code>a, a &gt; code</code> elements.</p></td>
+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><a href='choose_dark_or_light.html'>choose_dark_or_light(secondary_color, secondary_color, primary_color)</a></code>.
-Modifies the <code>strong</code> element.</p></td>
+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>
     <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.</p></td>
+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>
     <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.</p></td>
+Modifies the <code>.remark-inline-code</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-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.</p></td>
+<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><a href='choose_dark_or_light.html'>choose_dark_or_light(secondary_color, black_color, white_color)</a></code>.
-Modifies the <code>.inverse</code> class.</p></td>
+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>
       <th>inverse_header_color</th>
       <td><p>Inverse Header Color. Defaults to
 <code><a href='choose_dark_or_light.html'>choose_dark_or_light(secondary_color, black_color, white_color)</a></code>.
-Modifies the <code>.inverse h1, .inverse h2, .inverse h3</code> classes.</p></td>
+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><a href='choose_dark_or_light.html'>choose_dark_or_light(primary_color, black_color, white_color)</a></code>. Modifies
-the <code>.title-slide</code> class.</p></td>
+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.</p></td>
+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>
     <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.</p></td>
+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.</p></td>
+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(--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.</p></td>
+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-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.</p></td>
+Modifies the <code>.remark-slide-content h2</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-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.</p></td>
+Modifies the <code>.remark-slide-content h3</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-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>
       <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.</p></td>
+<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.</p></td>
+<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>
     <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.</p></td>
+<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 Fallbacks. Defaults to
 -apple-system, BlinkMacSystemFont, avenir next, avenir, helvetica neue,
 helvetica, Ubuntu, roboto, noto, segoe ui, arial. Modifies the <code>body</code>
-element.</p></td>
+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.</p></td>
+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>
       <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.</p></td>
+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>
     <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.</p></td>
+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.</p></td>
+<code>.remark-inline</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-font-size)</a></code> in any
+argument of a style function or in custom CSS.</p></td>
     </tr>
     <tr>
       <th>code_font_url</th>

dev/reference/style_mono_accent.html

     <tr>
       <th>text_color</th>
       <td><p>Text Color. Defaults to <code>black_color</code>. Modifies the <code>body</code>
-element.</p></td>
+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>base_color</code>. Modifies the
-<code>h1, h2, h3</code> elements.</p></td>
+<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>white_color</code>.
-Modifies the <code>.remark-slide-content</code> class.</p></td>
+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>base_color</code>. Modifies the
-<code>a, a &gt; code</code> elements.</p></td>
+<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>base_color</code>. Modifies
-the <code>strong</code> element.</p></td>
+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>
     <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.</p></td>
+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>
     <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.</p></td>
+Modifies the <code>.remark-inline-code</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-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>base_color</code>. Modifies the <code>.inverse</code> class.</p></td>
+<code>base_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>white_color</code>.
-Modifies the <code>.inverse</code> class.</p></td>
+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>
     <tr>
       <th>inverse_header_color</th>
       <td><p>Inverse Header Color. Defaults to <code>white_color</code>.
-Modifies the <code>.inverse h1, .inverse h2, .inverse h3</code> classes.</p></td>
+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>inverse_text_color</code>. Modifies the <code>.title-slide</code> class.</p></td>
+<code>inverse_text_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>inverse_background_color</code>. Modifies the <code>.title-slide</code> class.</p></td>
+to <code>inverse_background_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>
     <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.</p></td>
+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.</p></td>
+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(--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.</p></td>
+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-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.</p></td>
+Modifies the <code>.remark-slide-content h2</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-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.</p></td>
+Modifies the <code>.remark-slide-content h3</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-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>
       <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.</p></td>
+<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.</p></td>
+<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>
     <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.</p></td>
+<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 Fallbacks. Defaults to
 -apple-system, BlinkMacSystemFont, avenir next, avenir, helvetica neue,
 helvetica, Ubuntu, roboto, noto, segoe ui, arial. Modifies the <code>body</code>
-element.</p></td>
+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.</p></td>
+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>
       <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.</p></td>
+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>
     <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.</p></td>
+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.</p></td>
+<code>.remark-inline</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-font-size)</a></code> in any
+argument of a style function or in custom CSS.</p></td>
     </tr>
     <tr>
       <th>code_font_url</th>

dev/reference/style_mono_accent_inverse.html

     <tr>
       <th>text_color</th>
       <td><p>Text Color. Defaults to <code>white_color</code>. Modifies the <code>body</code>
-element.</p></td>
+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>base_color</code>. Modifies the
-<code>h1, h2, h3</code> elements.</p></td>
+<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>black_color</code>.
-Modifies the <code>.remark-slide-content</code> class.</p></td>
+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>base_color</code>. Modifies the
-<code>a, a &gt; code</code> elements.</p></td>
+<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>base_color</code>. Modifies
-the <code>strong</code> element.</p></td>
+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>
     <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.</p></td>
+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>
     <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.</p></td>
+Modifies the <code>.remark-inline-code</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-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>base_color</code>. Modifies the <code>.inverse</code> class.</p></td>
+<code>base_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>black_color</code>.
-Modifies the <code>.inverse</code> class.</p></td>
+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>
     <tr>
       <th>inverse_header_color</th>
       <td><p>Inverse Header Color. Defaults to <code>black_color</code>.
-Modifies the <code>.inverse h1, .inverse h2, .inverse h3</code> classes.</p></td>
+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>inverse_text_color</code>. Modifies the <code>.title-slide</code> class.</p></td>
+<code>inverse_text_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>inverse_background_color</code>. Modifies the <code>.title-slide</code> class.</p></td>
+to <code>inverse_background_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>
     <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.</p></td>
+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.</p></td>
+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(--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.</p></td>
+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-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.</p></td>
+Modifies the <code>.remark-slide-content h2</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-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.</p></td>
+Modifies the <code>.remark-slide-content h3</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-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>
       <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.</p></td>
+<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.</p></td>
+<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>
     <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.</p></td>
+<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 Fallbacks. Defaults to
 -apple-system, BlinkMacSystemFont, avenir next, avenir, helvetica neue,
 helvetica, Ubuntu, roboto, noto, segoe ui, arial. Modifies the <code>body</code>
-element.</p></td>
+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.</p></td>
+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>
       <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.</p></td>
+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>
     <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.</p></td>
+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.</p></td>
+<code>.remark-inline</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-font-size)</a></code> in any
+argument of a style function or in custom CSS.</p></td>
     </tr>
     <tr>
       <th>code_font_url</th>

dev/reference/style_mono_dark.html

     <tr>
       <th>text_color</th>
       <td><p>Text Color. Defaults to <code>white_color</code>. Modifies the <code>body</code>
-element.</p></td>
+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>base_color</code>. Modifies the
-<code>h1, h2, h3</code> elements.</p></td>
+<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>black_color</code>.
-Modifies the <code>.remark-slide-content</code> class.</p></td>
+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>base_color</code>. Modifies the
-<code>a, a &gt; code</code> elements.</p></td>
+<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>base_color</code>. Modifies
-the <code>strong</code> element.</p></td>
+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>
     <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.</p></td>
+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>
     <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.</p></td>
+Modifies the <code>.remark-inline-code</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-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>base_color</code>. Modifies the <code>.inverse</code> class.</p></td>
+<code>base_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>black_color</code>.
-Modifies the <code>.inverse</code> class.</p></td>
+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>
     <tr>
       <th>inverse_header_color</th>
       <td><p>Inverse Header Color. Defaults to <code>black_color</code>.
-Modifies the <code>.inverse h1, .inverse h2, .inverse h3</code> classes.</p></td>
+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>inverse_text_color</code>. Modifies the <code>.title-slide</code> class.</p></td>
+<code>inverse_text_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>inverse_background_color</code>. Modifies the <code>.title-slide</code> class.</p></td>
+to <code>inverse_background_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>
     <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.</p></td>
+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.</p></td>
+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(--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.</p></td>
+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-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.</p></td>
+Modifies the <code>.remark-slide-content h2</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-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.</p></td>
+Modifies the <code>.remark-slide-content h3</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-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>
       <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.</p></td>
+<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.</p></td>
+<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>
     <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.</p></td>
+<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 Fallbacks. Defaults to
 -apple-system, BlinkMacSystemFont, avenir next, avenir, helvetica neue,
 helvetica, Ubuntu, roboto, noto, segoe ui, arial. Modifies the <code>body</code>
-element.</p></td>
+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.</p></td>
+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>
       <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.</p></td>
+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>
     <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.</p></td>
+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.</p></td>
+<code>.remark-inline</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-font-size)</a></code> in any
+argument of a style function or in custom CSS.</p></td>
     </tr>
     <tr>
       <th>code_font_url</th>

dev/reference/style_mono_light.html

     <tr>
       <th>text_color</th>
       <td><p>Text Color. Defaults to <code>black_color</code>. Modifies the <code>body</code>
-element.</p></td>
+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>base_color</code>. Modifies the
-<code>h1, h2, h3</code> elements.</p></td>
+<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>white_color</code>.
-Modifies the <code>.remark-slide-content</code> class.</p></td>
+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>base_color</code>. Modifies the
-<code>a, a &gt; code</code> elements.</p></td>
+<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>base_color</code>. Modifies
-the <code>strong</code> element.</p></td>
+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>
     <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.</p></td>
+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>
     <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.</p></td>
+Modifies the <code>.remark-inline-code</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-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>base_color</code>. Modifies the <code>.inverse</code> class.</p></td>
+<code>base_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>white_color</code>.
-Modifies the <code>.inverse</code> class.</p></td>
+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>
     <tr>
       <th>inverse_header_color</th>
       <td><p>Inverse Header Color. Defaults to <code>white_color</code>.
-Modifies the <code>.inverse h1, .inverse h2, .inverse h3</code> classes.</p></td>
+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>inverse_text_color</code>. Modifies the <code>.title-slide</code> class.</p></td>
+<code>inverse_text_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>inverse_background_color</code>. Modifies the <code>.title-slide</code> class.</p></td>
+to <code>inverse_background_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>
     <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.</p></td>
+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.</p></td>
+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(--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.</p></td>
+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-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.</p></td>
+Modifies the <code>.remark-slide-content h2</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-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.</p></td>
+Modifies the <code>.remark-slide-content h3</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-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>
       <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.</p></td>
+<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.</p></td>
+<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>
     <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.</p></td>
+<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 Fallbacks. Defaults to
 -apple-system, BlinkMacSystemFont, avenir next, avenir, helvetica neue,
 helvetica, Ubuntu, roboto, noto, segoe ui, arial. Modifies the <code>body</code>
-element.</p></td>
+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.</p></td>
+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>
       <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.</p></td>
+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>
     <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.</p></td>
+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.</p></td>
+<code>.remark-inline</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-font-size)</a></code> in any
+argument of a style function or in custom CSS.</p></td>
     </tr>
     <tr>
       <th>code_font_url</th>

dev/reference/style_solarized_dark.html

     <tr>
       <th>text_slide_number_color</th>
       <td><p>Slide Number Color. Defaults to #586e75.
-Modifies the <code>.remark-slide-number</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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+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. 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(NA)</a></code> in any argument of a style function or in custom
-CSS.</p></td>
+to 16px 64px 16px 64px. Modifies the <code>.remark-slide-content</code> class.</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. 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(NA)</a></code> in any argument of
-a style function or in custom CSS.</p></td>
+<code>.remark-slide-content</code> class.</p></td>
     </tr>
     <tr>
       <th>background_size</th>
 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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+<code>NULL</code>. Modifies the <code>.remark-slide-content</code> class.</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. 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(NA)</a></code> in any argument of
-a style function or in custom CSS.</p></td>
+<code>.remark-slide-content</code> class.</p></td>
     </tr>
     <tr>
       <th>code_highlight_color</th>
     <tr>
       <th>code_inline_color</th>
       <td><p>Inline Code Color. Defaults to #6c71c4. Modifies
-the <code>.remark-inline-code</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(NA)</a></code> in any argument of
-a style function or in custom CSS.</p></td>
+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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+to <code>NULL</code>. Modifies the <code>.remark-inline-code</code> class.</p></td>
     </tr>
     <tr>
       <th>code_inline_font_size</th>
     <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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+Defaults to <code>FALSE</code>. Modifies the <code>.inverse</code> class.</p></td>
     </tr>
     <tr>
       <th>inverse_header_color</th>
     <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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+Modifies the <code>.title-slide</code> class.</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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+Position. Defaults to <code>NULL</code>. Modifies the <code>.title-slide</code> class.</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. 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(NA)</a></code> in any argument of a style function or in
-custom CSS.</p></td>
+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. 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(NA)</a></code> in any argument of a style
-function or in custom CSS.</p></td>
+the <code>.footnote</code> class.</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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+Defaults to 60px. Modifies the <code>.footnote</code> class.</p></td>
     </tr>
     <tr>
       <th>left_column_subtle_color</th>
       <td><p>Left Column Text (not last). Defaults to
-#586e75. Modifies the <code>.left-column h2, .left-column 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(NA)</a></code> in any argument of a style function or in custom
-CSS.</p></td>
+#586e75. 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
 #93a1a1. Modifies the
-<code>.left-column h2:last-of-type, .left-column h3:last-child</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(NA)</a></code> in any argument of a style function or in custom
-CSS.</p></td>
+<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 #cb4b16. Modifies the <code>blockquote</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(NA)</a></code> in
-any argument of a style function or in custom CSS.</p></td>
+to #cb4b16. Modifies the <code>blockquote</code> element.</p></td>
     </tr>
     <tr>
       <th>table_border_color</th>
       <td><p>Table top/bottom border. Defaults to #657b83.
-Modifies the <code>table: border-top, border-bottom</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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+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
-#657b83. Modifies the <code>table thead th: border-bottom</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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+#657b83. 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 #073642. Modifies the <code>thead, tfoot, tr:nth-child(even)</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(NA)</a></code> in any argument of a style function or in
-custom CSS.</p></td>
+elements.</p></td>
     </tr>
     <tr>
       <th>base_font_size</th>
       <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>.  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(NA)</a></code> in any argument of a
-style function or in custom CSS.</p></td>
+enable. Defaults to <code>FALSE</code>.</p></td>
     </tr>
     <tr>
       <th>header_background_color</th>
     <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. 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(NA)</a></code> in any argument of a style function or in custom
-CSS.</p></td>
+Defaults to <code>NULL</code>. Modifies the <code>.remark-slide-content h1</code> class.</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. 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(NA)</a></code> in any argument of
-a style function or in custom CSS.</p></td>
+<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. 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(NA)</a></code> in any argument of
-a style function or in custom CSS.</p></td>
+<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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+0.9em. Modifies the <code>.remark-slide-number</code> class.</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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+to <code>NULL</code>. Modifies the <code>body</code> element.</p></td>
     </tr>
     <tr>
       <th>text_font_family</th>
     <tr>
       <th>text_font_weight</th>
       <td><p>Body Text Font Weight. Defaults to normal. 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(NA)</a></code> in any argument of a style
-function or in custom CSS.</p></td>
+the <code>body</code> element.</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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+Modifies the <code>@import url()</code> elements.</p></td>
     </tr>
     <tr>
       <th>text_font_family_fallback</th>
     <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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+Defaults to <code>NULL</code>. Modifies the <code>body</code> element.</p></td>
     </tr>
     <tr>
       <th>header_font_family</th>
     <tr>
       <th>header_font_weight</th>
       <td><p>Header Font Weight. Defaults to 600. 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(NA)</a></code> in any argument of a style
-function or in custom CSS.</p></td>
+<code>h1, h2, h3</code> elements.</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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+to <code>NULL</code>. Modifies the <code>body</code> element.</p></td>
     </tr>
     <tr>
       <th>code_font_family</th>
       <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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+<code>.remark-code, .remark-inline-code</code> classes.</p></td>
     </tr>
     <tr>
       <th>colors</th>

dev/reference/style_solarized_light.html

     <tr>
       <th>text_slide_number_color</th>
       <td><p>Slide Number Color. Defaults to #93a1a1.
-Modifies the <code>.remark-slide-number</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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+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. 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(NA)</a></code> in any argument of a style function or in custom
-CSS.</p></td>
+to 16px 64px 16px 64px. Modifies the <code>.remark-slide-content</code> class.</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. 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(NA)</a></code> in any argument of
-a style function or in custom CSS.</p></td>
+<code>.remark-slide-content</code> class.</p></td>
     </tr>
     <tr>
       <th>background_size</th>
 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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+<code>NULL</code>. Modifies the <code>.remark-slide-content</code> class.</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. 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(NA)</a></code> in any argument of
-a style function or in custom CSS.</p></td>
+<code>.remark-slide-content</code> class.</p></td>
     </tr>
     <tr>
       <th>code_highlight_color</th>
     <tr>
       <th>code_inline_color</th>
       <td><p>Inline Code Color. Defaults to #6c71c4. Modifies
-the <code>.remark-inline-code</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(NA)</a></code> in any argument of
-a style function or in custom CSS.</p></td>
+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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+to <code>NULL</code>. Modifies the <code>.remark-inline-code</code> class.</p></td>
     </tr>
     <tr>
       <th>code_inline_font_size</th>
     <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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+Defaults to <code>FALSE</code>. Modifies the <code>.inverse</code> class.</p></td>
     </tr>
     <tr>
       <th>inverse_header_color</th>
     <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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+Modifies the <code>.title-slide</code> class.</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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+Position. Defaults to <code>NULL</code>. Modifies the <code>.title-slide</code> class.</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. 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(NA)</a></code> in any argument of a style function or in
-custom CSS.</p></td>
+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. 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(NA)</a></code> in any argument of a style
-function or in custom CSS.</p></td>
+the <code>.footnote</code> class.</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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+Defaults to 60px. Modifies the <code>.footnote</code> class.</p></td>
     </tr>
     <tr>
       <th>left_column_subtle_color</th>
       <td><p>Left Column Text (not last). Defaults to
-#93a1a1. Modifies the <code>.left-column h2, .left-column 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(NA)</a></code> in any argument of a style function or in custom
-CSS.</p></td>
+#93a1a1. 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
 #586e75. Modifies the
-<code>.left-column h2:last-of-type, .left-column h3:last-child</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(NA)</a></code> in any argument of a style function or in custom
-CSS.</p></td>
+<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 #cb4b16. Modifies the <code>blockquote</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(NA)</a></code> in
-any argument of a style function or in custom CSS.</p></td>
+to #cb4b16. Modifies the <code>blockquote</code> element.</p></td>
     </tr>
     <tr>
       <th>table_border_color</th>
       <td><p>Table top/bottom border. Defaults to #839496.
-Modifies the <code>table: border-top, border-bottom</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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+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
-#839496. Modifies the <code>table thead th: border-bottom</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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+#839496. 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 #eee8d5. Modifies the <code>thead, tfoot, tr:nth-child(even)</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(NA)</a></code> in any argument of a style function or in
-custom CSS.</p></td>
+elements.</p></td>
     </tr>
     <tr>
       <th>base_font_size</th>
       <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>.  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(NA)</a></code> in any argument of a
-style function or in custom CSS.</p></td>
+enable. Defaults to <code>FALSE</code>.</p></td>
     </tr>
     <tr>
       <th>header_background_color</th>
     <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. 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(NA)</a></code> in any argument of a style function or in custom
-CSS.</p></td>
+Defaults to <code>NULL</code>. Modifies the <code>.remark-slide-content h1</code> class.</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. 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(NA)</a></code> in any argument of
-a style function or in custom CSS.</p></td>
+<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. 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(NA)</a></code> in any argument of
-a style function or in custom CSS.</p></td>
+<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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+0.9em. Modifies the <code>.remark-slide-number</code> class.</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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+to <code>NULL</code>. Modifies the <code>body</code> element.</p></td>
     </tr>
     <tr>
       <th>text_font_family</th>
     <tr>
       <th>text_font_weight</th>
       <td><p>Body Text Font Weight. Defaults to normal. 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(NA)</a></code> in any argument of a style
-function or in custom CSS.</p></td>
+the <code>body</code> element.</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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+Modifies the <code>@import url()</code> elements.</p></td>
     </tr>
     <tr>
       <th>text_font_family_fallback</th>
     <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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+Defaults to <code>NULL</code>. Modifies the <code>body</code> element.</p></td>
     </tr>
     <tr>
       <th>header_font_family</th>
     <tr>
       <th>header_font_weight</th>
       <td><p>Header Font Weight. Defaults to 600. 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(NA)</a></code> in any argument of a style
-function or in custom CSS.</p></td>
+<code>h1, h2, h3</code> elements.</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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+to <code>NULL</code>. Modifies the <code>body</code> element.</p></td>
     </tr>
     <tr>
       <th>code_font_family</th>
       <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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+<code>.remark-code, .remark-inline-code</code> classes.</p></td>
     </tr>
     <tr>
       <th>colors</th>

dev/reference/style_xaringan.html

     <tr>
       <th>text_slide_number_color</th>
       <td><p>Slide Number Color. Defaults to
-<code>inverse_background_color</code>. Modifies the <code>.remark-slide-number</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(NA)</a></code> in any argument of a style function or in custom
-CSS.</p></td>
+<code>inverse_background_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. 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(NA)</a></code> in any argument of a style function or in custom
-CSS.</p></td>
+to 16px 64px 16px 64px. Modifies the <code>.remark-slide-content</code> class.</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. 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(NA)</a></code> in any argument of
-a style function or in custom CSS.</p></td>
+<code>.remark-slide-content</code> class.</p></td>
     </tr>
     <tr>
       <th>background_size</th>
 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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+<code>NULL</code>. Modifies the <code>.remark-slide-content</code> class.</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. 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(NA)</a></code> in any argument of
-a style function or in custom CSS.</p></td>
+<code>.remark-slide-content</code> class.</p></td>
     </tr>
     <tr>
       <th>code_highlight_color</th>
     <tr>
       <th>code_inline_color</th>
       <td><p>Inline Code Color. Defaults to #000. Modifies the
-<code>.remark-inline-code</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(NA)</a></code> in any argument of a
-style function or in custom CSS.</p></td>
+<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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+to <code>NULL</code>. Modifies the <code>.remark-inline-code</code> class.</p></td>
     </tr>
     <tr>
       <th>code_inline_font_size</th>
     <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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+Defaults to <code>FALSE</code>. Modifies the <code>.inverse</code> class.</p></td>
     </tr>
     <tr>
       <th>inverse_header_color</th>
     <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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+Modifies the <code>.title-slide</code> class.</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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+Position. Defaults to <code>NULL</code>. Modifies the <code>.title-slide</code> class.</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. 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(NA)</a></code> in any argument of a style function or in
-custom CSS.</p></td>
+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. 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(NA)</a></code> in any argument of a style
-function or in custom CSS.</p></td>
+the <code>.footnote</code> class.</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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+Defaults to 60px. Modifies the <code>.footnote</code> class.</p></td>
     </tr>
     <tr>
       <th>left_column_subtle_color</th>
       <td><p>Left Column Text (not last). Defaults to
-#777. Modifies the <code>.left-column h2, .left-column 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+#777. 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
 #000. Modifies the
-<code>.left-column h2:last-of-type, .left-column h3:last-child</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(NA)</a></code> in any argument of a style function or in custom
-CSS.</p></td>
+<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 lightgray. Modifies the <code>blockquote</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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+to lightgray. 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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+#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 #eee. Modifies the <code>thead, tfoot, tr:nth-child(even)</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(NA)</a></code> in any argument of a style function or in
-custom CSS.</p></td>
+elements.</p></td>
     </tr>
     <tr>
       <th>base_font_size</th>
       <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>.  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(NA)</a></code> in any argument of a
-style function or in custom CSS.</p></td>
+enable. Defaults to <code>FALSE</code>.</p></td>
     </tr>
     <tr>
       <th>header_background_color</th>
     <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. 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(NA)</a></code> in any argument of a style function or in custom
-CSS.</p></td>
+Defaults to <code>NULL</code>. Modifies the <code>.remark-slide-content h1</code> class.</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. 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(NA)</a></code> in any argument of
-a style function or in custom CSS.</p></td>
+<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. 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(NA)</a></code> in any argument of
-a style function or in custom CSS.</p></td>
+<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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+0.9em. Modifies the <code>.remark-slide-number</code> class.</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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+to <code>NULL</code>. Modifies the <code>body</code> element.</p></td>
     </tr>
     <tr>
       <th>text_font_family</th>
     <tr>
       <th>text_font_weight</th>
       <td><p>Body Text Font Weight. Defaults to normal. 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(NA)</a></code> in any argument of a style
-function or in custom CSS.</p></td>
+the <code>body</code> element.</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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+Modifies the <code>@import url()</code> elements.</p></td>
     </tr>
     <tr>
       <th>text_font_family_fallback</th>
     <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. 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(NA)</a></code> in any argument of a style function or in custom CSS.</p></td>
+Defaults to <code>NULL</code>. Modifies the <code>body</code> element.</p></td>
     </tr>
     <tr>
       <th>header_font_family</th>
     <tr>
       <th>header_font_weight</th>
       <td><p>Header Font Weight. Defaults to 600. 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(NA)</a></code> in any argument of a style
-function or in custom CSS.</p></td>
+<code>h1, h2, h3</code> elements.</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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+to <code>NULL</code>. Modifies the <code>body</code> element.</p></td>
     </tr>
     <tr>
       <th>code_font_family</th>
       <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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+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. 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(NA)</a></code> in any
-argument of a style function or in custom CSS.</p></td>
+<code>.remark-code, .remark-inline-code</code> classes.</p></td>
     </tr>
     <tr>
       <th>colors</th>