i'd flip through the help file on how to use the color corrector effect properly, then duplicate the clip into two layers, matte the top layer so it is almost completely just the shirt, keyframe it so it tracks with the shirt, apply the color corrector effect to the clip, and tweak to your liking. If you use the effect properly (and subtly) you should get a good result without seeing any haloing around the shirt. Good luck w/ it.