Dear Akamatsu Ken:
Those are all from the same official fanbook which just came out a few days ago. I'd heard her hair color was retconned, but if it was then why is it still red in most of these pics. Including newly colored shots from the really recent manga (chapters in the 160s). Did she dye it for summer break or something? STOP dying it? CAN nuns dye their hair?
BURNING QUESTIONS clearly.
p.s. app Misora