Less usable, I agree, that's true from a technical standpoint. That's also from a opinion on a color standpoint. I thought black with white text was the best way to go and I loved the change before now. I don't like this baby poo looking color, which is also my opinion. I thought it looked much better before.
Fotunately [unfortunately for you] there are getting on for 4.2 million Stardock members each with a 'preferred' colour choice to suit their tastes, however disparate.
I [still] don't like the colour scheme of Wincustomize.com ....and my UserID number is a 'wee bit' lower than yours...which means I've made do with whatever Stardock has decided as suitable for about a decade longer, and I'm a site Administrator.
I think one thread about disliking the chosen colour scheme is MORE than enough, really.
Whenever I pop over to the Gaming sites [or Joe User] I see it as a welcome change....and quite decent, too...