Ohhh I do like synesthesia, but I was more so gearing black as in showing the ugly side of people they hide. Her way of stripping them down to draw attention away from her own lack of color to hide behind, I.e. if she steals coor from a man who is try to enjoy a day out with his family but secretly wants to just drink and scream at them to shut up because he’s over stressed from his office job he would be more inclined to act on that without a second thought because the colors are missing there’s nothing to act as a buffer or hide that desire. But I can keep trying to flesh it out, I’ll write up a ca and see if maybe explaining the character I have in mind more would make it easier to understand. 

I was thinking of her mainly using it selfishly as a form of camouflage, she doesn’t want anyone to notice she’s different or not the same so she cares little about how it might effect others as long as she perceives herself to be safe.