I'm not sure how most people are finding my theme, but a quick reminder to everyone who may install it at some point and then create a frivolous issue on the GitHub page:
If you notice your tabs aren't highlighted when modified, double-check the README. Do not create a GitHub issue for this unless you are absolutely sure it's not a case of PEBCAK — otherwise I'm putting your issue in the hall of shame. I may also add your name to the README as a person to be shunned and avoided for eternity. It depends on how many more issues people create without reading the README. Might be fun.
Added a new color scheme, Big Duo. Cast in the name of god, ye not guilty, and so on. Screenshot of that below. I don't expect it'll be to everyone's liking, but I was finding Tubnil a little hard to work with during the day even though I basically live in a cave (three stories up, but you'd be surprised what covering the windows with towels will do), so I figured I'd tweak it a bit. This was the result. I know, it's more along the lines of Big O's colors, but Big Duo's cooler. Insert other childlike wonder at big robots here.
Fixed diff highlighting in Tubnil Bright. Also tweaked highlighting in Tubnil. Both include keys for some stuff that's not in the default diff grammar — I'll probably see about putting those changes somewhere later. Git diff highlighting inside commit messages is also given a unique background color as well in both Tubnil and Big Duo. There's also a highlight for namespaces and such in there — same as other entities. The default C++ grammar also does not include this. That's another thing I'll have to think about.
As anyone who uses Nil or Ayin might've noticed, groups and folders are purple now. Actually, folders were always purple in Ayin, but the point is there's more purple. As an added note to those who have been requesting I change it to blue or add a ridiculous number of preferences to change it to different colors, no. The sidebar colors can be disabled, check the README for instructions.