span class="op">)</span>, guide <span class="op">=</span> <span class="st">"legend"</span>,</span>
<span>    labels <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"blue w/ black outline"</span>, <span class="st">"green w/ yellow outline"</span><span class="op">)</span></span>
<span>  <span class="op">)</span> <span class="op">+</span></span>
<span>  <span class="fu"><a href="../reference/scale_cyc