What program are you using? Just out of curiosity.
Super Mario Boards
Night King
Pomni
The only one I have is paint.net.
Night King
Does it have a paint bucket tool?
Pomni
It has a recolor tool. The paint bucket would get rid of all the shading that's in the texture sheets.
Night King
Ah.
Xiahou Dun
What are you trying to recolor?
Pomni
I'm trying to recolor the Mario, Luigi, Yoshi, and Shy Guy model textures in Mario Party 9 so I can put some OCs in.