patch 9.0.1495: GTK3: hiding the mouse pointer does not work Commit: https://github.com/vim/vim/commit/660eb9f9db6e704e39e40c6f0bf747a14de30321 Author: Kenny Stauffer <kstauffer@gmail.com> Date: Fri Apr 28 16:36:51 2023 +0100 patch 9.0.1495: GTK3: hiding the mouse pointer does not work Problem: GTK3: hiding the mouse pointer does not work. (Rory O?Kane) Solution: Set alpha level to zero. (Kenny Stauffer, closes https://github.com/vim/vim/issues/12293, closes #3256)