User blog comment:ZoshiX/Aura Magic Effectiveness/@comment-3103523-20160205161912/@comment-2012328-20160210002720

Chiming in. This all looks interesting to see to have two colors battle each other.

To identify characters, the colors don't have to be different (especially in color-equal grays and primal colors for the most part (e.g. Teteoh)). Faux auras could be used as support but might require a lot of energy just to "cheat" this in, methinks. More than one aura could work as an average?

The aura scent may have derived from some Doublizarro characters having such ability. Nonetheless, I don't think it could be confused as a general character's "perfume", or maybe it does.

The different aura representation for different people could work in some ways, or perhaps accent off of other magic-related items (e.g. Mindstone).

As a sidenote, I don't seem to ever recall Hank being Grape-scented (if it was from a chat then I might understand). The closest thing to a fruit that LD had suggested some time ago would be Raspberry. I just thought that upon seeing the Gasoline entry that I had to go with it, as Hank could be "explosive" as might be evidenced being The Dictator.