Out of curiosity, which is your distribution? Did you customise the GUI system fonts?
I’m using KDE Plasma. I’ve set my system font to be monospace
(an alias to, probably Noto Sans Mono).
KDE Plasma is a desktop manager. Distro is something like Debian xx, Fedora yy, Ubuntu zz, Arch ww, …
I swear you said desktop environment in your post. I do understand the distinction, I promise (very embarrassing) I’m just tired.
I’m using OpenSUSE Tumbleweed.
PS /home/rokejulianlockhart> cat /etc/os-release
NAME="openSUSE Tumbleweed"
# VERSION="20230425"
ID="opensuse-tumbleweed"
ID_LIKE="opensuse suse"
VERSION_ID="20230425"
PRETTY_NAME="openSUSE Tumbleweed"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:opensuse:tumbleweed:20230425"
BUG_REPORT_URL="https://bugzilla.opensuse.org"
SUPPORT_URL="https://bugs.opensuse.org"
HOME_URL="https://www.opensuse.org"
DOCUMENTATION_URL="https://en.opensuse.org/Portal:Tumbleweed"
LOGO="distributor-logo-Tumbleweed"
PS /home/rokejulianlockhart>
When changing to the light colour theme, I didn’t select the light icons. KDE appears to remediate this automatically, but doesn’t change the preference, so LibreOffice was correct.
This isn’t really a bug. More, it’s just that Plasma/Qt is obviously very impressive in this regard.