Give 2 options for the “Back” button: the “<“ takes you to the previous screen, and a new “<<“ button (or the yellow skull button) takes you to the main screen. Right now, if you are in a message or if you are viewing a profile, you need to press “<“ at least twice to go back at least 2 screens and arrive at the main screen (and sometimes you even need to press it more than 2 times). Example: < to exit a message, then < to exit a profile, then the yellow skull button to exit the favorite screen so you can arrive at the main screen again.