simple-scan.desktop is missing StartupWMClass and shows up as a generic application in the Dash
After launching simple-scan, the Dash shows a generic application icon instead of the actual icon. In addition, if you pin the application to the Dash, the running version doesn’t get merged. This is because the .desktop file is missing StartupWMClass
:
[Desktop Entry]
StartupWMClass=org.gnome.SimpleScan