Logging in and out, restarting GDM, nor rebooting changes the display of the icon. The icons that existed when the .desktop file or .deb package was installed is the icon that shows up in the "favorites" menu. The expectation is that the customisation that was made in alacarte would have also changed when launcher item was added to "favorites".
Logging in and out, restarting GDM, nor rebooting changes the display of the icon. The icons that existed when the .desktop file or .deb package was installed is the icon that shows up in the "favorites" menu. The expectation is that the customisation that was made in alacarte would have also changed when launcher item was added to "favorites".