In approx 1/4 of my installed themes this badge looks awful:

Having no-results just doesn't feel like an error. Standard badge color (Like white here on github badge) is fine(because it's usually made for it).

P.S. no need for a new color, already too many of them.

P.P.S. actually new settings editor doing exactly that:

So, it just needs to be aligned with the GUI version of settings.