Okay, now to work on colors. The art came from CuteLucca (Dark Matter, from her techs series) so I guess it would be prudent to shoot her an email about this if you'd like to use it. You're not distributing an entire ROM, correct? Only patches, I assume. I guess I'll have to figure out how to patch this in once I finish with the palette coloring.
Blech, going past the 15 color limit is impossible without some sort of ASM hacking to get the game to read these as 8 bits/pixel images. So 15 colors it is; I should finish sometime tomorrow, depending on how perfectionist I decide to get.