Posted by perepujal on Feb 15, 2023; 7:44pm
URL: https://forum.librecad.org/white-UI-in-Windows-and-Dark-UI-in-Linux-why-tp5722486p5722502.html

I suspect stylesheets, but I don't know anything about them.
https://librecad.readthedocs.io/en/latest/ref/customize.html#style-sheets-1