nice idea, but the problem in the interface was, to know which part in a file should be now blue and which green and which part should not changed (like the buttons)
so I've opened every file, convert to RGB, put a mask on the correct part, changed the color to values I want (not everytime the same values), convert to palette256 and save file
(sometimes add more than one mask for other buttons or else)
if I understand your idea correct, you need the palette for all files and the programm replace 1:1 the original palette of every file
I think it's a nice idea, but I'm happy to finish with this version now, I don't have time for more

(other changes are waiting

, at this time new territory-borders)
so if you want to create such program, have fun

, but I don't have time to create more palettes for this program as the one you can download here
