Two improvements that should be made here: 1) The more obvious one, the default launchers need to be updated for 16.04+ 2) xfpanel-switch should be able to check if an executable exists before adding its launcher to the panel.
Two improvements that should be made here:
1) The more obvious one, the default launchers need to be updated for 16.04+
2) xfpanel-switch should be able to check if an executable exists before adding its launcher to the panel.