AppImage down show the correct icon in Gnome dock

[sezaru]

I use gearlever to install https://github.com/jeffvli/feishin which is only released as a appimage.

The issue is that the app icon is not used when the app is open in Gnome.

Here is the app icon correctly used in the gnome app list:

Here is the icon it uses when the app is open in the dock:

Even if I try to pin the app, it will still create a new icon in the dock instead of using the pinned one:

[BrodyB]

I'm also experiencing this. The funny thing is: Gear Lever seems to be doing things correctly. It created a .desktop file in the right place, that .desktop file has an Icon= property that points to an icon folder inside the AppImages directory, and that icon exists. I can't figure out why it doesn't show up in the dash.

• Gear Lever 2.0.1 (Flatpak)
• Bazzite (derived from Fedora Silverblue 40)
• Gnome 46.3.1

[mijorus]

I can't either

[BrodyB]

Found the solution. Perhaps this is an issue that's cropped up with recent versions of Gnome.

ItsFOSS

In short:
.desktop files need to have one more property added for the icon and application name to show properly on the dock, for whatever reason.

1. In Terminal, type xprop WM_CLASS
2. Click on the application you want to mend
3. The Terminal will show you one or more string values for the id of the application (i.e. WM_CLASS(STRING) = "sayonara", "com.sayonara-player.Sayonara")
4. In the .desktop file, add a StartupWMClass property with one of those strings (i.e. StartupWMClass=sayonara)
5. Once you save the file, Gnome will refresh in a few seconds and the tray/dock icon will appear.