virt-manager should allow you to choose not to have it just minimize to tray when all windows have been closed

When all windows have been closed I am still forced to press the "Quit" button on the tray icon as it appears to just minimize to tray or whatever you want to call it. Now this may be good for some, and I understand that there are "Quit" buttons to properly close it in the windows, but I really think that at least somewhere in the settings the user should be able to choose an option that says when all virt-manager related windows are closed, it quits fully.