I tried it after reading this comment. You weren't kidding. Unfortunately, my Vim isn't rendering properly. About 10 lines in the middle of the screen are blank for some reason. Both in and out of Tmux. Oh well. I'm just happy that I can look forward to Metal rendering being merged into stable.
Not sure if it's the same issue I had recently with iTerm2 periodically going black, but consider disabling the Core Text renderer with the following command:
