Dark theme for XFCE on Debian

[Deleted_Editor_2612537]

I’ve futzed around with various QT5 settings but can’t get Picard to display in a dark theme. I do have XFCE itself in a Dark Theme, and all applications, with perhaps one other exception. Any suggestions?

[outsidecontext]

Try this:

Picard daily builds

Found the theming thing: The magic is done by having the QGnomePlatform plugin installed. On Debian based systems the package should be qgnomeplatform-qt5. Then launching Picard with QT_QPA_PLATFORMTHEME=gnome would use the color scheme set there. When running actually GNOME this would already be set automatically. Dark / light theme detection requires QGnomePlatform >= 0.9. That won’t work with the AppImage though, unless it would have the QGnomePlatform plugin bundled. Which I won’t do. The A…

[digifuzzy]

Changing systems after a hardware upgrade, I went hunting for a solution to this problem.
HT to @outsidecontext for the pointers.

For others, still using the 2.x series of Picard (3.x series is qt6 based where themes are applied differently):

• install QGnomePlatform-qt5package (apt, yum, et al depending on OS)
• copy /usr/share/applications/org.musicbrainz.Picard.desktop →$HOME/.local/share/applications
• edit $HOME/.local/share/applications/org.musicbrainz.Picard.desktop by changing the Exec command to read: Exec=env QT_QPA_PLATFORMTHEME=gnome picard %F
• update desktop database with $ update-desktop-database ~/.local/share/applications
• Select Picard from the desktop menu.
• Go to Options →User Interface → User Interface Colour Theme and select System from the drop down box.
• Select Make it So

Exit Picard, and restart.
Picard should pickup on the user’s selected colour theme.

YMMV

Ref:

• Desktop_entries (Modify environment variables) - ArchWiki
• https://picard-docs.musicbrainz.org/en/config/options_interface.html

[FriendOfBells]

Absolute goat, this worked perfectly.