Description from original post (created 2013-06-22 02:26):
I have a skin of a lumberjack with a red plaid shirt. I would like to change the color of the shirt to a blue plaid. Is there a way to change the color of the skin without changing the color of the lumberjack's skin tone to blue?
(P.S. I know of Photoshop as being a solution, but it isn't free - I think...)