Desktop gadgets, DJ controller software, wallpaper changer and password manager so far.
Edit: WindowBlinds 10.5 also doesn't apply themes to Process Hacker and it was leaving a small transparent gap in file explorer windows where I removed the command bar. It was also messing up DOSBox in full screen mode, leaving a border of desktop and the window title visible. I have gone back to WindowBlinds 8.13, which has no problems.