ll></h4><h4><small>extends <a class="type" title="openfl.display.GraphicsShader" href="../../../openfl/display/GraphicsShader.html">GraphicsShader</a> &rsaquo; <a class="type" title="openfl.display.Shader - // TODO: Document GLSL Shaders A Shader instance represents a Pixel Bender shader kernel in ActionScript." href="../../../openfl/display/Shader.html">Shader</a></small></h4>    <span class="label label-meta label-meta-directlyUsed" title="Marks types that are directly referenced by non-extern code.">@:di