These files are palettes for Tile Layer Pro, and will help you get started on editting the art.

The following palettes were created by Kojichao:
Sonic_Advance_-_Sonic.tpl
Sonic_Advance_-_Tails.tpl
Sonic_Advance_-_Knuckles.tpl
Sonic_Advance_-_Amy.tpl

All of the other palettes were created by me. I slightly altered the Sonic palette to be less offensive. =P