Now that the LG G4 is finally rooted we can start to modify our device. A quick and easy way to freshen up your device is to run a custom theme. "Ghstudent" has ported over several themes that will work with US variants of the G4. You don't have to be bootloader unlocked, but you will need to be rooted. The theme that Gh ported does a few things to change the look of your homescreen such as replaces icons in status bar and quick settings, now more google themed quick settings. If you would like to give this theme a try head to the link in the description.
via XDA