Bottom coordinate of the rectangle that encloses the mask.
Planar data, having a size of (right-left)*(bottom-top)*bytesPerPixel.
The mask's default color regions outside the enclosing rectangle.
The mask's density value.
The mask's feather value.
The offset from the start of the file where the channel's data is stored.
Left coordinate of the rectangle that encloses the mask.
Right coordinate of the rectangle that encloses the mask.
Top coordinate of the rectangle that encloses the mask.
A struct representing a layer mask as stored in the layers of the Layer Mask section.