Replying to @volpeon@icy.wyvern.rip
@volpeon Which guy, there seems to be a few "Reverse engineer Photoshop" projects.
I suspect some lawyers gonna be busy because even if the code is clean/not copied I'd think there will be patents around the interfaces and the way things are done.
That said if the people doing it are lucky enough to be in countries where the US has sod all jurisdiction and the local government doesn't care then GL suing them.