Black trim around side mirrors

ARGH! Just screwed up the finish on the black trim on the side mirrors. Had a micro fiber with some bug and tar removal on it and accidently brushed the black trim with it. It appears to
have removed the finish or discolored it. Anybody know if the plastic pieces are solid black plastic or if it's just a black finish? Looks like total crap. Should I attempt to repaint these or
replace the whole dam mirror?