So, I'm bumping this (wasn't even a week old? Man, time feels weird right now) because of Red Mage. Namely, it doesn't really seem to line up with this. It just has three colors. White, Black, and kind of a pinky red. There doesn't even seem to be any difference between things of the same color but different elements, which kind of throws out my theory of it just being astral/umbral aligned things. So I'm not sure what to make of this. White/light aligned stuff and the purply/dark aligned stuff are pretty consistent, and the aether it uses for those looks similar, but not sure what the pink one is honestly, thought it was my Moogle weapon throwing it off but dropped the glamour and it looks the same. From a Doylist standpoint what's going on is pretty obvious, but not sure what the Watsonian answer is.