I hadn't updated O&O Shut Up 10 in some time, and the new version uses rounded corners on the application window.
I wouldn't mind much about that design, except it's now almost impossible to grab it to diagonally pull on the window. The zone where the mouse cursor turns to an diagonal arrow is maybe two pixels wide somewhere on the rounded border.
It might even be possible it's not larger on normal windows, but well, they have an actual corner that pretty easy to spot and target.
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