<StencilWidget>
    canvas.before:
        StencilPush
        RoundedRectangle:
            pos: root.pos
            size: root.size
            # FIXME: Sometimes the radius has the value [], which get a
            #  `GraphicException: Invalid radius value, must be list of tuples/numerics` error
            radius: root.radius if root.radius else [0, 0, 0, 0]
        StencilUse
    canvas.after:
        StencilUnUse
        RoundedRectangle:
            pos: root.pos
            size: root.size
            # FIXME: Sometimes the radius has the value [], which get a
            #  `GraphicException: Invalid radius value, must be list of tuples/numerics` error
            radius: root.radius if root.radius else [0, 0, 0, 0]
        StencilPop