ss="label label-meta label-meta-impl" title="Used internally to mark abstract implementation fields.">@:impl</span><span class="label label-meta label-meta-enum" title="Defines finite value sets to abstract definitions.">@:enum</span><span class="label label-inline">inline</span><span class="label">read only</span><a href="#ACCUMULATE"><span class="identifier">ACCUMULATE</span></a>:<a class="type" title="js.html.CompositeOperation" href="../../js/html/CompositeOperation.html">CompositeOperation</a><span> = 