Created attachment 175304 [details] Calc screenshot On my 3400 x 1440 (21:9) screen, all LibreOffice menus use the system default (dark mode in my case) background beyond a certain resolution. The expected outcome is that the background is consistent for all screen resolutions. This has been the case for every LibreOffice version I have tried. Currently on 7.2.1.2. See screenshot.
I do not have a 3400 x 1440 for testing, so I cannot reproduce this bug here. Can you test again with the current daily build? Many fixes for dark mode have been made since LO 7.2. https://dev-builds.libreoffice.org/daily/master/current.html Please let me know if the issue persists.
It looks like you might be using a theme in Tools > Options > LibreOffice > Personalization? I am pretty sure this is the same issue as 131023 *** This bug has been marked as a duplicate of bug 131023 ***