WebGLContextAttributes
fun WebGLContextAttributes(
alpha: Boolean? = true,
depth: Boolean? = true,
stencil: Boolean? = false,
antialias: Boolean? = true,
premultipliedAlpha: Boolean? = true,
preserveDrawingBuffer: Boolean? = false,
preferLowPowerToHighPerformance: Boolean? = false,
failIfMajorPerformanceCaveat: Boolean? = false
): WebGLContextAttributes