Greetings!
Feeling like the wiki's appearance needed a revamp, I set out to... well... do it. In terms of common-css stuff, I simplified the color scheme, deleted anything that was superfluous, and gave a new look to certain things. (And by things, I mean our infoboxes, tables, navboxes, and main page, among others.) They aren't all that different from before, but I think they're looking pretty cool.
In terms of theme-designer stuff, despite my fondness for the former header (which you can see here, or at least the light theme version of it), I decided to make a new one and use Strive's Season 3 main visual and shake things up a little bit. Once again it comes in two versions.
I hope that you like the design choices, and more importantly, that readibility isn't a *****!