Oddly, when in Tools - Options - Personalization
I set the background theme to one of the pre-installed colors, the background changes to the selected color, and remains so when I reset to the default theme until I restart LibreOffice. That looks like a bug to me, but it may be entirely my fault. Can anyone confirm this?
Version: 7.4.1.2 / LibreOffice Community
Build ID: 96749c58c39750fe6113ca0224d2dd9b40a26641
CPU threads: 4; OS: Linux 5.15; UI render: default; VCL: gtk3
Locale: nl-NL (nl_NL.UTF-8); UI: en-US
Calc: threaded
Ubuntu Linux 20.04.1 LTS, Gnome 42.4.