king shapes.
<code>r</code>, <code>g</code>, <code>b</code> are 0-255, <code>a</code> is 0-1.</p>
    </section>
    
    <section class="summary source-code" id="source">
      <h2><span>Implementation</span></h2>
      <pre class="language-dart"><code class="language-dart">void setStrokeColorRgb(int r, int g, int b, [num a = 1]) {
  this.strokeStyle = &#39;rgba($r, $g, $b, $a)&#39;;
}</code></pre>
    </section>

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