span>
<span class="sd">        :ucstype:</span>
<span class="sd">            | &#39;ucs&#39; or &#39;lcd&#39; or &#39;scd&#39;, optional</span>
<span class="sd">            | Str specifier for which type of color attribute compression </span>
<span class="sd">            | parameters to use:</span>
<span class="sd">            |     -&#39;ucs&#39;: uniform color space,</span>
<span class="sd">            |     -&#39;lcd&#39;, large color differences,</span>
<span class="sd">            |     -&#39;scd&#39;: