package js.html; typedef WebGLContextAttributes = { @:optional var alpha : Bool; @:optional var antialias : Bool; @:optional var depth : Bool; @:optional var desynchronized : Bool; @:optional var failIfMajorPerformanceCaveat : Bool; @:optional var powerPreference : WebGLPowerPreference; @:optional var premultipliedAlpha : Bool; @:optional var preserveDrawingBuffer : Bool; @:optional var stencil : Bool; };