No specific info about version 3.1. Please visit the main page of Menu Bar Tint on Mac Informer.
Note: Most recent release available only within OS X 10.11 El Capitan update.
Organize your Menu Bar items with just a few clicks.
Gives your Mac a cleaner look by hiding the menu bar.
It is a menu bar app menu to access important files and folders.
IP Address Menu lets users display a current IP address in the menu bar.