I had a themeless contest in mind when I picked the theme but I like how many of you have used the 2x2 block concept to build themes around it. I'm stealing one of your titles for an actual themeless submission with proper themeless-hard cluing.
I thought I'd try pulling a Natan Last/Erik Agard for once. Which means that my seed entry is a 15-letter name with largely uninferrable (maybe) letters, that can make the puzzle much easier for those who know it and possibly frustrating for those…