public override void PostProcess(SKRect?viewport, SKMatrix totalMatrix) { var element = Element; if (element is null) { return; } var enableMask = !IgnoreAttributes.HasFlag(DrawAttributes.Mask); ClipPath = null; if (enableMask) { MaskDrawable = SvgExtensions.GetSvgElementMask(element, GeometryBounds, new HashSet <Uri>(), AssetLoader, References); if (MaskDrawable is { })