I actually like all of the alternate colors for her default costume and the Dark Kat. I could kinda care less about her purple color for Sea Kat, but hey, someone out there likes it.

I don't hate her colors. After playing Gravity Rush, they do look a bit out of place, but the same can be said about some of Evil Cole's colors, especially the bright red version of his Evil Among Thieves costume, but I've gotten used to that. Just think of the alternate colors as "shiny" versions of the characters.