ck</code>. The
<code>default</code> highlighting theme is <code>arrow</code>, provided
by the <a href="https://rmarkdown.rstudio.com/docs/">rmarkdown</a>
package in addition to the <code>rstudio</code> theme.</p>
<p><code>html_document_clean()</code> can also use <a
href="https://prismjs.com/">Prism</a> for highlighting. In this case,
highlighting is performed in the browser and the dependencies are
downloaded as needed. To use Prism, set <code>theme: prism</code> or use
one of the following value to choose