Linux Mint 21.3 Xfce is missing a high dpi window manager theme.
This is my attempt to fix that.
This theme is based on mmolch-xfce (xhdpi) and Ambiance-hidpi.
Click on "Code" and "Download ZIP".
Extract the downloaded zip-file to one of this folders:
- user folder:
~/.local/share/themes - system folder (needs root permissions):
/usr/share/themes
Open "Settings" > "Window Manager" and choose "Mint-Y-Aqua (xhdpi)".