The solution removes the black bars that appear in the game at 48:9 or other resolutions wider than 32:9.
- Download the mod archive below.
- Unpack the files to the game folder containing the game executable.
To uninstall, simply remove or move the files.
As with the native experience when going wider from 16:9, the mouse pointer and a few other UI elements may become bigger in size. Use the keyboard keys if having a hard time navigating the main menu.
Tested on the latest Microsoft Store version at 5760x1080.
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