I use AppImage launcher to integrate AppImages with my desktop and, when I approached the developer about it, I was told that it was an icon issue with KDE.
STEPS TO REPRODUCE
1. Have AppImage Launcher installed
2. Attempt to run the AppImage to have it integrated
3. Application launcher and system tray icons lose their icons for the rest of the session
The system tray icons can be restored by exiting the relevant applications entirely and relaunching them, but this does not fix the missing icons affected for apps in the application launcher.
App icons shouldn't disappear during user operation
Linux: Arch Linux
(available in About System)
KDE Plasma Version: 5.21.1
KDE Frameworks Version: 5.79.0
Qt Version: 5.15.2
I've managed to reproduce this on every distro I've ever used with KDE, personally
I think similar situation is when user changes the icon theme - Neko, can you change icon theme is System Settings? Is issue exactly the same?
The exact same situation occurs with the system tray, in this scenario, yeah.
However, there's one difference:
in the application launcher, instead of some icons turning into white sheets of paper, they also go completely invisible like the system tray icons that do
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/813
Git commit 40bf43ad57cc5be4172261f90d23785f76efb5a8 by Nate Graham, on behalf of Konrad Materka.
Committed on 25/04/2021 at 15:11.
Pushed by ngraham into branch 'master'.
[dataengines/sni] Reapply IconThemePath on icon theme change
SNI can have custom icon path in IconThemePath attribute.
StatusNotifierItemSource uses custom KIconLoader to add this theme dir.
KIconLoader forgets this path on any system change
(for example when icon theme is change in system settings).
Reapply custom theme path on KIconLoader::iconChanged.
M +5 -0 dataengines/statusnotifieritem/statusnotifieritemsource.cpp
I still have this issue despite the mentioned fix; it never went away.
OS: Arch Linux
Kernel: Linux 5.11.18-152-tkg-upds
KDE Plasma Version: 5.21.5
KDE Frameworks version: 5.82.0
Qt Version: 5.15.2
Graphics Platform: X11
(In reply to nekonexus from comment #5)
> I still have this issue despite the mentioned fix; it never went away.
> KDE Plasma Version: 5.21.5
It will be fixed in Plasma 5.22