 a specific Prism theme:
<code>prism-coy</code>, <code>prism-dark</code>,
<code>prism-funky</code>, <code>prism-okaidia</code>,
<code>prism-solarizedlight</code>, <code>prism-tomorrow</code>, and
<code>prism-twilight</code>.</p>
<p><strong>MathJax and FontAwesome</strong> are also available but
disabled by default. To enable either feature, you can set
<code>mathjax</code> to <code>local</code> or <code>default</code>, as
in <code>rmarkdown::html_document()</code>. Set
<code>use_fontawesome</code> to <code>