How to change backlight modes?

Backlight Modes: 

    Press FN + END to cycle between four lighting modes: Static, Breathing, Wave, & Reactive.

Backlight Brightness: 

    Press FN + Up Arrow Key or Down arrow key to increase or decrease the backlight brightness.

Backlight colors:

    Press FN + Right Arrow Key or Left Arrow Key to cycle through the backlight colors: White (default), Red, Orange, Yellow, Green, Purple, Sky Blue, & RGB.

Backlight speed:

    Press FN + Page Up or Page Down to speed up or slow down the backlights. Only the Breathing and Wave modes can adjust the backlight speed.