Hey. I use the depth of field tool. When I use it in almost all colors, EXCEPT for black and dark gray, everything is perfect. This is really very cool. However, when I use this (and any other tools associated with drawing or offsetting at all) with black and dark gray colors to create a smooth grad...

Two years later, the question is still relevant. If in all other drawing programs known to me, it is not a problem to copy or move a layer between documents, then this program is problematic.