materialRoundRect
fun RenderContext2D.materialRoundRect( x: Double, y: Double, width: Double, height: Double, color: RGBA = Colors.RED, radius: RectCorners = RectCorners.EMPTY, shadowOffset: Point = Point.ZERO, shadowColor: RGBA = Colors.BLACK, shadowRadius: Double = 0.0, highlightPos: Point = Point.ZERO, highlightRadius: Double = 0.0, highlightColor: RGBA = Colors.WHITE, borderSize: Double = 0.0, borderColor: RGBA = Colors.WHITE)