Dock icon displayed as a gear

The EXE program is displayed as a gear, the default one.
螢幕快照 2024-08-27 19-00-34

Can I assign an icon for it through Lutris? It seems only Lutris can assign the icon for the program run by Lutris.

My EXE program is “BlackDesert64.exe”. It’s another program run after Lutris launches the game with the executable “BlackDesertLauncher.exe”.

My OS is Ubuntu 24.04, with GNOME 46 and Wayland.