meta label-meta-keep" title="Causes a field or type to be kept by DCE.">@:keep</span><a href="#alpha"><span class="identifier">alpha</span></a>:<a class="type" title="Float - The standard Float type, this is a double-precision IEEE 64bit float." href="../../Float.html">Float</a></code></h3><div class="doc"><p>Indicates the alpha transparency value of the object specified. Valid
values are 0 (fully transparent) to 1 (fully opaque). The default value is 1.
Display objects with <code>alpha</code> set to 0 <em>