Kiyohime

Hello.
I've been wondering about Kiyohime's "alternate" design now for quite somw time. She normally appears with aqua/green hair. But sometimes she is drawn with silver/grey hair like in post #2962363.
Her wiki doesn't say anything about this other appearance, so I dare to ask if this deserves a seperate tag and if not: Is this an alternate hair color or what is that?

The silver hair and dark dress appearance is her appearance when you've ascended her to level 3 or higher in Fate Grand Order. (See Stage 3 in http://fategrandorder.wikia.com/wiki/Kiyohime)
As for tagging, I'm not sure what it should be tagged.

No other input?
Well, in my opinion if we create new char tags for Fate characters that look visually exactly the same except the clothes then it seems awfully weird when their isn't a tag for character that has distinct body features from the "vanilla" version. .