This project actually died silently some years ago.
I stopped using WindowBlinds a long time ago and it’s also a year since I bought a MacBook. So I don’t use Windows much nowadays.
The single Swing-based application that I still use - IntelliJ IDEA - uses it’s own UI elements that don’t work well with custom look and feels. I had tried to make Squareness work well with IDEA but it was a pain and finally I gave up.
So in the last few years there has been no real motivation to work on Squareness anymore. Since I have no reason to believe that the future will change anything in this respect, I officially declare this project as dead.
Squareness has been my first open source project and I had a great time working on it, but it’s time to move on to other endeavors.