Created attachment 174162 [details] Dark mode LO. I highlighted areas that are not easy to read. 1. Use Gnome 40. 2. Install this extension: https://extensions.gnome.org/extension/2236/night-theme-switcher/ 3. Activate dark mode. 4. Open LibreOffice (I use flathub flatpak, in case it matters) The aspect is how you see in the picture. Some elements are barely distinguishable from the background, due to being dark over dark. It doesn't seem like a lot of them would need to change for the app to be completely usable in dark mode.
*** Bug 144225 has been marked as a duplicate of this bug. ***
As mentioned in bug 144225 comment 2, Colibre icon set does not have a dark variant. It would be nice to have, but as there are other icon sets with dark variants, I don't think this can be treated as a defect. Tools > Options > LibreOffice > View > Icon Style