Quick headcanon post
My Metis has blue markings on her body that glow in the water.
Athena doesn't have them on a daily basis, but after contact with wild water, glowing markings appear on her own body. Pallas used to like them a lot, but now Athena tries to avoid water so as not to show them. She considers them unnecessary and unsightly, and besides, what good warrior wears something that immediately gives away their position?
It's not like Zeus told her that ... on the way to Olympus when she still had her friend's blood on her hands. Not at all. This hypocrite loved them on Metis tho.











