https://bugs.kde.org/show_bug.cgi?id=458865
Bug ID: 458865
Summary: After an update to qt5-base the dolphin file picker
dialog used in GTK applications via GTK_USE_PORTAL=1
ignores theming
Product: dolphin
Version: 22.08.0
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: dolphin-bugs-n...@kde.org
Reporter: moritz1...@googlemail.com
CC: kfm-de...@kde.org
Target Milestone: ---
SUMMARY
***
As per:
https://wiki.archlinux.org/title/Uniform_look_for_Qt_and_GTK_applications#Consistent_file_dialog
I have set `GTK_USE_PORTAL=1` in `/etc/environment/`.
This make GTK applications use the Dolphin file picker dialog e.g. VSCode.
After updating qt5-base from version `5.15.5+kde+r182-1` to `5.15.5+kde+r184-1`
the Dolphin file picker uses a light theme (instead of my system wide use of
Breeze Dark and Icons are missing). This only applies to to GTK applications
e.g. Kate still uses a dark themed Dolphin file picker dialog with correct
icons.
***
STEPS TO REPRODUCE
1. Set `GTK_USE_PORTAL=1` in `/etc/environment/`
2. You should now have a Dophin file picker in e.g. VSCode which respects your
KDE theme choice
3. Update your KDE arch system from `5.15.5+kde+r182-1` to `5.15.5+kde+r184-1`
4. Reboot
5. Now e.g. VSCode still uses the Dolphin file picker but ignores theming and
icons are missing
See screenshots:
Before updating the system: https://imgur.com/a/JIRQ8ue
After update & reboot: https://imgur.com/a/mNEeNjg
OBSERVED RESULT
The Dolphin file picker dialog in GTK applications ignores theming and has
missing icons.
EXPECTED RESULT
The Dolphin file picker dialog in GTK applications works as before the update:
respecting my theme choice and with all the icons appearing.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
(available in About System)
KDE Plasma Version: 5.25.5
KDE Frameworks Version: 5.97.0
Qt Version: 5.15.5
ADDITIONAL INFORMATION
Maybe this has something to do with:
https://gitlab.gnome.org/GNOME/gtk/-/merge_requests/4829 a
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