Out with the new, back in with the old. Razer Huntsmen TE died (the second, newer Razer keyboard that bit the dust on me). Back to using the trusty Blackwidow Ultimate 2013. :
Custom LED color and brightness on a Razer BlackWidow Ultimate | cocasdaneve
Razer Blackwidow LED Fix ~[Works with Chroma, 2014, 2013 edition] - YouTube