I am the proud new owner of a Dell G15 5520, but ican't help but wonder.. 

why won't the fn+f5 (backlight) and fn+f(9) do anything .. all the other f1-12 keys are working fine except theese two.

and also how do i change the color of my backlit keyboard ? .. it changes color on boot  but once windows opens it is stuck on turquoise, i tried the alienware command center app but it does not support this particular device.