hey there - please feel free to join the discord, it's hard to keep track of things all over the place :D i've added in the group folders for imported tiles for the next release! oh, also, the reason the colors change is if you are working with a bunch of random sources that use a bunch of different palettes, and capped at 256 colors, it's trying to adjust the colors to the current palette, it's trying to find the closest match.