As the maintainer of Plank Reloaded, the most common bug report I get is "this app has the wrong icon." It's almost never the dock - it's a broken StartupWMClass in the app's .desktop file. So I wrote up how to find the right value on X11, Wayland, and KDE, and why deleting the line often fixes it.

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[–] [S] 2 points 4 months ago (1 child)

StartupWMClass is NOT needed if the .desktop file is named correctly.

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