My LightDM greeter
#1Switching users after getting password prompt
If you change the username field after already inputting it once (and getting to the password prompt), it won't get updated if you edit it and don't press enter again (I think).
Maybe just make username field into an uneditable label after it's set with a button to "go back". Or instead of having a "back" button, just reset the prompt field whenever we get an error message from LightDM.
