Sorry, I didn't read through all 46 pages so I might have missed the information. Is there any way to close MyContacts from outside the app? Is there a d-bus command one can use?

The reason is that theme customizer restarts desktop after changes but with MyContatcs running this completely breaks the desktop. Only solution left is to reboot the device. So I'm looking for a possibility to stop mycontacts before restarting desktop and to start it again when desktop is running. Do you have any clue on how to do this in a clean way?