nd arrows for columns.</p>
    </div>
    <div class="section level2">
    <h2 id="aesthetics">Aesthetics<a class="anchor" aria-label="anchor" href="#aesthetics"></a></h2>


<p><code>geom_origin()</code> accepts no aesthetics.
<code>geom_unit_circle()</code> understands the following aesthetics (none required):</p><ul><li><p><code>linetype</code></p></li>
<li><p><code>linewidth</code></p></li>
<li><p><code>colour</code></p></li>
<li><p><code>alpha</code></p></li>
</ul></div>
    <div class="section level2">