Is there any interest in creating a graphics app that is not GIMP, but is GIMP-like?
If I wrote the general framework in Presentation Manager, created the thread model, got the base set of tools working with skeleton windows, icons, toolbars, some base load and save algorithms, and created the internal model for representing images for display, layers, selection, undo, etc., would anyone else be interested in continuing development after that?
I would be available to help with anything needed, but most of the algorithms that I'd be able to help with could be found in the GIMP source code. I do have some models for features I would've liked to see added to GIMP:
Replication layer array, and
Find and Replace, and I have a half dozen other good ideas.
One is for anti-aliased merging, and the ability to take fringe pixels and blend them in more smoothly to pasted layers so that content taken from a white background merges onto a dark background without visible artifacts, and vice-versa.