Handle case where canvas is 0x0 for shadows

    private static void paintGeometricShadow(@NonNull float[][] coordinates, float lightPosX,

            float lightPosY, float lightHeight, float lightSize, Canvas canvas) {

        if (canvas == null || canvas.getWidth() == 0 || canvas.getHeight() == 0) {

            return;

        }

        // The polygon of shadow (same as the original item)

        float[] shadowPoly = new float[coordinates.length * 3];