Okay, here's the time for my feedback.
The first thing I saw is switching between MCSG and MCTF2, which I think is awesome, even if I don't write a lot on another community. There is also a picture or logo for MCTF2 on the bottom of page, which you definitly see, if you are writing post from computer. That's a big plus from my side, because MCTF2 will be much more known and visited, I guess. But be sure, to make same thing on MCTF2.
I see the Alerts and Inbox bug is fixed. It's cool and works perfectly.
The whole theme is well designed, Fins's picture and this Minecraft font. It's designed very well, as it befits for big, good and awesome community, like MCSG is.
Only thing I don't like is a lot of brightness. Well, maybe just because we all were using dark theme, but this green lines fits perfect and it little fix this thing .
The biggest problem I have is on the first site, and that's the column on right (under search bar). It's in light blue color and doesn't go good with the white background.
However, it's good, and when it will be tested, make sure to set it as default theme.