patch 8.2.4906: MS-Windows: cannot use transparent background Commit: https://github.com/vim/vim/commit/aa04e1b0be343ff606e25a48d59bc057edcc6e87 Author: Yasuhiro Matsumoto <mattn.jp@gmail.com> Date: Sat May 7 14:09:19 2022 +0100 patch 8.2.4906: MS-Windows: cannot use transparent background Problem: MS-Windows: cannot use transparent background. Solution: Make transparent background work with 'termguicolors' and NONE background color. (Yasuhiro Matsumoto, closes #10310, closes #7162)