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      <h1 data-toc-skip>Themes</h1>
            
      
      <small class="dont-index">Source: <a href="https://github.com/gadenbuie/xaringanthemer/blob/master/vignettes/themes.Rmd"><code>vignettes/themes.Rmd</code></a></small>
      <div class="hidden name"><code>themes.Rmd</code></div>

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<p><strong>xaringanthemer</strong> includes a number of functions that provide themed <strong>xaringan</strong> styles. All of the styling functions start with the <code>style_</code> prefix.</p>
<p>The goal of each style function is to quickly set up a coordinated color palette for your slides based on one or two starter colors. Styles based on one color start with <code>style_mono_</code> and styles based on two colors start with <code>style_duo_</code>. How the starter colors are used is described in the final portion of the style function name. For example, <code><a href="../reference/style_mono_accent.html">style_mono_accent()</a></code> uses a single color as an accent color.</p>
<p>Note that the colors used below are for demonstration only, the point of the <code>style_</code> functions is for you to choose your own color palette!</p>
<p>If you color palette uses more than two colors, you can add additional colors with the <code>colors</code> argument. See the <a href="#colors">Colors</a> section for more information.</p>
<div id="monotone" class="section level3">
<h3 class="hasAnchor">
<a href="#monotone" class="anchor"></a>Monotone</h3>
<p>Use these functions to automatically create a consistent color palette for your slides, based around a single color.</p>
<div id="style_mono_light" class="section level4">
<h4 class="hasAnchor">
<a href="#style_mono_light" class="anchor"></a><code>style_mono_light()</code>
</h4>
<p>A light theme based around a single color.</p>
<div class="sourceCode" id="cb1"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="fu"><a href="../reference/style_mono_light.html">style_mono_light</a></span><span class="op">(</span>base_color <span class="op">=</span> <span class="st">"#23395b"</span><span class="op">)</span></code></pre></div>
<p><img src="https://raw.githubusercontent.com/gadenbuie/xaringanthemer/assets/example_mono_light.png" data-external="1"></p>
</div>
<div id="style_mono_dark" class="section level4">
<h4 class="hasAnchor">
<a href="#style_mono_dark" class="anchor"></a><code>style_mono_dark()</code>
</h4>
<p>A dark theme based around a single color.</p>
<div class="sourceCode" id="cb2"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="fu"><a href="../reference/style_mono_dark.html">style_mono_dark</a></span><span class="op">(</span>base_color <span class="op">=</span> <span class="st">"#cbf7ed"</span><span class="op">)</span></code></pre></div>
<p><img src="https://raw.githubusercontent.com/gadenbuie/xaringanthemer/assets/example_mono_dark.png" data-external="1"></p>
</div>
<div id="style_mono_accent" class="section level4">
<h4 class="hasAnchor">
<a href="#style_mono_accent" class="anchor"></a><code>style_mono_accent()</code>
</h4>
<p>The default xaringan theme with a single color used for color accents on select elements (headers, bold text, etc.).</p>
<div class="sourceCode" id="cb3"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="fu"><a href="../reference/style_mono_accent.html">style_mono_accent</a></span><span class="op">(</span>base_color <span class="op">=</span> <span class="st">"#43418A"</span><span class="op">)</span></code></pre></div>
<p><img src="https://raw.githubusercontent.com/gadenbuie/xaringanthemer/assets/example_mono_accent.png" data-external="1"></p>
</div>
<div id="style_mono_accent_inverse" class="section level4">
<h4 class="hasAnchor">
<a href="#style_mono_accent_inverse" class="anchor"></a><code>style_mono_accent_inverse()</code>
</h4>
<p>An “inverted” default xaringan theme with a single color used for color accents on select elements (headers, bold text, etc.).</p>
<div class="sourceCode" id="cb4"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="fu"><a href="../reference/style_mono_accent_inverse.html">style_mono_accent_inverse</a></span><span class="op">(</span>base_color <span class="op">=</span> <span class="st">"#3C989E"</span><span class="op">)</span></code></pre></div>
<p><img src="https://raw.githubusercontent.com/gadenbuie/xaringanthemer/assets/example_mono_accent_inverse.png" data-external="1"></p>
</div>
</div>
<div id="duotone" class="section level3">
<h3 class="hasAnchor">
<a href="#duotone" class="anchor"></a>Duotone</h3>
<p>These themes build from two (ideally) complementary colors.</p>
<div id="style_duo" class="section level4">
<h4 class="hasAnchor">
<a href="#style_duo" class="anchor"></a><code>style_duo()</code>
</h4>
<p>A two-colored theme based on a primary and secondary color.</p>
<div class="sourceCode" id="cb5"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="fu"><a href="../reference/style_duo.html">style_duo</a></span><span class="op">(</span>primary_color <span class="op">=</span> <span class="st">"#1F4257"</span>, secondary_color <span class="op">=</span> <span class="st">"#F97B64"</span><span class="op">)</span></code></pre></div>
<p><img src="https://raw.githubusercontent.com/gadenbuie/xaringanthemer/assets/example_duo.png" data-external="1"></p>
</div>
<div id="style_duo_accent" class="section level4">
<h4 class="hasAnchor">
<a href="#style_duo_accent" class="anchor"></a><code>style_duo_accent()</code>
</h4>
<p>The default Xaringan theme with two accent colors.</p>
<div class="sourceCode" id="cb6"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="fu"><a href="../reference/style_duo_accent.html">style_duo_accent</a></span><span class="op">(</span>primary_color <span class="op">=</span> <span class="st">"#035AA6"</span>, secondary_color <span class="op">=</span> <span class="st">"#03A696"</span><span class="op">)</span></code></pre></div>
<p><img src="https://raw.githubusercontent.com/gadenbuie/xaringanthemer/assets/example_duo_accent.png" data-external="1"></p>
</div>
<div id="style_duo_accent_inverse" class="section level4">
<h4 class="hasAnchor">
<a href="#style_duo_accent_inverse" class="anchor"></a><code>style_duo_accent_inverse()</code>
</h4>
<p>An “inverted” default Xaringan theme with two accent colors.</p>
<div class="sourceCode" id="cb7"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="fu"><a href="../reference/style_duo_accent_inverse.html">style_duo_accent_inverse</a></span><span class="op">(</span>primary_color <span class="op">=</span> <span class="st">"#035AA6"</span>, secondary_color <span class="op">=</span> <span class="st">"#03A696"</span><span class="op">)</span></code></pre></div>
<p><img src="https://raw.githubusercontent.com/gadenbuie/xaringanthemer/assets/example_duo_accent_inverse.png" data-external="1"></p>
</div>
</div>
<div id="solarized" class="section level3">
<h3 class="hasAnchor">
<a href="#solarized" class="anchor"></a>Solarized</h3>
<p>There are also two themes based around the <a href="https://ethanschoonover.com/solarized/">solarized color palette</a>, <code><a href="../reference/style_solarized_light.html">style_solarized_light()</a></code> and <code><a href="../reference/style_solarized_dark.html">style_solarized_dark()</a></code>. For both themes, it is advisted to change the syntax highlighting theme to <code>solarized-light</code> or <code>solarized-dark</code> (looks great paired or constrasted).</p>
<div id="style_solarized_light" class="section level4">
<h4 class="hasAnchor">
<a href="#style_solarized_light" class="anchor"></a><code>style_solarized_light()</code>
</h4>
<div class="sourceCode" id="cb8"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="fu"><a href="../reference/style_solarized_light.html">style_solarized_light</a></span><span class="op">(</span><span class="op">)</span></code></pre></div>
<p><img src="https://raw.githubusercontent.com/gadenbuie/xaringanthemer/assets/example_solarized_light.png" data-external="1"></p>
</div>
<div id="style_solarized_dark" class="section level4">
<h4 class="hasAnchor">
<a href="#style_solarized_dark" class="anchor"></a><code>style_solarized_dark()</code>
</h4>
<div class="sourceCode" id="cb9"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="fu"><a href="../reference/style_solarized_dark.html">style_solarized_dark</a></span><span class="op">(</span><span class="op">)</span></code></pre></div>
<p><img src="https://raw.githubusercontent.com/gadenbuie/xaringanthemer/assets/example_solarized_dark.png" data-external="1"></p>
<p>To do this, your YAML header should look more-or-less like this:</p>
<div class="sourceCode" id="cb10"><pre class="sourceCode yaml"><code class="sourceCode yaml"><span id="cb10-1"><a href="#cb10-1"></a><span class="fu">output</span><span class="kw">:</span></span>
<span id="cb10-2"><a href="#cb10-2"></a><span class="at">  xaringan:</span><span class="fu">:moon_reader</span><span class="kw">:</span></span>
<span id="cb10-3"><a href="#cb10-3"></a><span class="at">    </span><span class="fu">css</span><span class="kw">:</span><span class="at"> </span><span class="kw">[</span><span class="st">"xaringan-themer.css"</span><span class="kw">]</span></span>
<span id="cb10-4"><a href="#cb10-4"></a><span class="at">    </span><span class="fu">nature</span><span class="kw">:</span></span>
<span id="cb10-5"><a href="#cb10-5"></a><span class="at">      </span><span class="fu">highlightStyle</span><span class="kw">:</span><span class="at"> solarized-dark</span></span>
<span id="cb10-6"><a href="#cb10-6"></a><span class="at">      </span><span class="fu">highlightLines</span><span class="kw">:</span><span class="at"> </span><span class="ch">true</span></span>
<span id="cb10-7"><a href="#cb10-7"></a><span class="at">      </span><span class="fu">countIncrementalSlides</span><span class="kw">:</span><span class="at"> </span><span class="ch">false</span></span></code></pre></div>
</div>
</div>
<div id="colors" class="section level2">
<h2 class="hasAnchor">
<a href="#colors" class="anchor"></a>Colors</h2>
<p>When designing your xaringan theme, you may have additional colors in your desired color palette beyond those used in the accent colors of the mono and duotone styles.</p>
<p>The <code>style*()</code> functions in xaringanthemer include a <code>colors</code> argument that lets you quickly define additional colors to use in your slides. This argument takes a vector of named colors</p>
<div class="sourceCode" id="cb11"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="va">colors</span> <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html">c</a></span><span class="op">(</span>
  red <span class="op">=</span> <span class="st">"#f34213"</span>,
  purple <span class="op">=</span> <span class="st">"#3e2f5b"</span>,
  orange <span class="op">=</span> <span class="st">"#ff8811"</span>,
  green <span class="op">=</span> <span class="st">"#136f63"</span>,
  white <span class="op">=</span> <span class="st">"#FFFFFF"</span>
<span class="op">)</span></code></pre></div>
<p>and creates CSS classes from the color name that set the text color — e.g. <code>.red</code> — or that set the background color — e.g. <code>.bg-red</code>. If you use custom CSS in your slides, the color name is also stored in a CSS variable — e.g. <code><a href="https://rdrr.io/r/stats/cor.html">var(--red)</a></code>.</p>
<p>So slide text like this</p>
<div class="sourceCode" id="cb12"><pre class="sourceCode markdown"><code class="sourceCode markdown"><span id="cb12-1"><a href="#cb12-1"></a>This **.red[simple]** .white.bg-purple[demo] </span>
<span id="cb12-2"><a href="#cb12-2"></a>_.orange[shows]_ the colors .green[in action].</span></code></pre></div>
<p>will be rendered in HTML as</p>
<blockquote>
This <strong><span style="color: #f34213">simple</span></strong> <span style="color:#FFFFFF;background-color:#3e2f5b;">demo</span> <em style="color:#ff8811">shows</em> the colors <span style="color:#136f63">in action</span>.
</blockquote>
<p>Note that the color names in <code>colors</code> need to be valid CSS names, so <code>"purple-light"</code> will work, but <code>"purple light"</code> will not.</p>
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