<div class="helpdiv" id="showcase_backgroundalpha">"Opacity of thumbnail bar" defines the parameter <br/> <i><strong>BackgroundAlpha</strong></i> for the <em>Showcase</em> Plugin/Add-on.<br/><br/><strong>Parameter description:</strong><br/>Defines the opacity of the thumbnail bar background from &quot;0&quot; (invisible) to &quot;100&quot; (opaque).<br/><br/><strong>Sample from configuration file:</strong><div class="samplecontents"><pre>&lt;PLUGIN src=&quot;showcase&quot;&gt;
   &lt;BackgroundAlpha value=&quot;10&quot; /&gt;   
&lt;/PLUGIN&gt;</pre></div><br/><strong>Default Value:</strong> 100</div>