Was traversing the web and stumbled across this thread, apparently written a long time ago, but intriguing.

Would his idea be possible?

http://forumsx.sonic-cult.org/lofiversion/index.php/t1237603.html

"In concept, that's a good idea, however the program was made for the Gameboy version of Metroid, and injected the palettes into a location in the rom that was convienent for that game. This, however, usually ended up replacing important data in any other rom, resulting in either messed up graphics or simply causing the game to not run.

Now, I may sound stupid because I know next to nothing about Gameboy Color palettes, but wouldn't it be possible to overdump a rom and use the excess space to store the GBC palettes?"

Yes, one would assume that. Since the program would be dealing with old b/w gameboy games, the palette pointers would be added to the ROM code during the colorization process...

So the idea is feasible?

Disch is right you will have to deal with mapping the ROM to a larger space. That gets tricky since you will have to then find everywhere it banks the ROM the ROM mapping chip to set the begining too expand the file size. Lots OH stuff.

Cyb

PS you might want to look at this thread on Emutalk