When an Image is masked with a layer, a mask object is created in the design hierarchy, which includes the mask and related layers for masking.
All inner layers which are used to mask are under the mask object. These inner layers should be grouped properly and only wanted images should come inside them.
The hierarchy that contains a mask object cannot be edited.
If the mask object is not in circle or rectangular/square shape, we convert all respective
objects into image with absolute coordinates.