Working Theme is Now Live
This forum is using the new theme, and it is an actual working theme now, not just a mockup.
This is a live forum and you are welcome to join to see how it works for logged-in users.
I am still working on updating the navigation throughout, which will take some time since I need to go through every single page type and make the adjustments I want. You can see some of them now on the channels themselves. Once I get the navigation done and a couple of other things, I will release it on GitHub with an MIT license.