Okay so, like 30 minutes ago I added fallback behavior for cases where
we can't correctly infer the color from a PB item's name… and then I
pulled it up in the color and found that, oh, right, there are already
3 PB items that *correctly* return `nil` for `Item#pb_color`: Aisha
Collar, Elephante Hat, and Ixi Collar.
This is because they're common items that apply to many colors, like
the basics, but also many other less-special or older color variants.
They are the most likely case where we'll return `nil`.
So, I've updated our fallback UI to, instead of talk vaguely about
missing data, just assume that we're dealing with basic items. In the
rare window of time where a new color is released, and we have PB items
for it but no manual color data yet, this can just incorrectly say
"Basic Colors" and that's fine.