rnal-link">c</a></span><span class="op">(</span><span class="st">"#FF0000"</span>, <span class="st">"#0000FF"</span>, <span class="st">"#00FF00"</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-plt img"><img src="scale_manual-3.png" alt="" width="700" height="433"></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># As with other scales you can use breaks to control the appearance</span></span></span>
<span class="r-in"><span><span 