A mask filter (for example, a blur) to apply to a shape after it has been drawn but before it has been composited into the image.
See MaskFilter for details.
Source
MaskFilter get maskFilter { if (_objects == null) return null; return _objects[_kMaskFilterIndex]; }
Source
set maskFilter(MaskFilter value) { _objects ??= new List<dynamic>(_kObjectCount); _objects[_kMaskFilterIndex] = value; }