method. An invalid index will return a nil value.</p>

<h4 id="label-Parameters">Parameters</h4>
<dl class="rdoc-list note-list"><dt>index
<dd>
<p>The index of the colour to be retrieved.</p>
</dd></dl>


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      <pre class="lines">


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      <pre class="code"><span class="info file"># File 'lib/rrtf/colour.rb', line 141</span>

<span class='kw'>def</span> <span class='op'>[]</span><span