Fix application having generic X11/Wayland icon in title bar

From Pengwings

Sometimes an application can have a generic X11 or Wayland icon in the title bar. On Linux the title bar icon normally comes from the .desktop file, and if the program cannot be matched with a .desktop file then it falls back to the generic placeholder icon.

To fix this, first open special application settings:

  • Right click title bar
  • More Actions
  • Configure Special Application Settings

Now add property "Desktop file name" and put the name of the .desktop file that's located in ~/.local/share/applications/

Should be all fixed

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