@GameHAckFan & @Anubi 2 , you could also contribute to Palmod :
Currently, it doesn't support Final Fight or Final Fight anniversary, but it already supports tons of games, mostly but not only arcade ones.
Adding support there shouldn't be more difficult, provided you know the palette's addresses.
I mean, even if the team wasn't interested (which I doubt), there is now a "unknown game" mode that lets you fiddle with it all by yourself.
Also the next fixes and updates to this hack seem incredible, Grego, thanks a lot !
Looks very interesting, I like the idea for sure. Well, I have editors for 2 games and only one of those can edit colors, it has addresses in it, all stuff I do related to hacking games is open source, so anyone can grab the content they want, of course respecting the license, you just have to access my github, it is all there. The only game that I have several color addresses mapped is Pretty Soldier Sailor Moon, so you can access PSSME and get the addresses.