">scale_colour_brewer</span>(<span class="dt">palette =</span> <span class="st">"Set1"</span>) +
<span class="st">  </span><span class="kw">labs</span>(<span class="dt">x =</span> <span class="st">"angle / degrees"</span>, <span class="dt">y =</span> <span class="st">"LFIEF"</span>, 
       <span class="dt">fill =</span> <span class="st">"Orientation"</span>) +
<span class="st">  </span><span class="kw">guides</span>(<span class="dt">fill=</span><span class="st">"none"</span>, <span class="dt">colour=</span