Kindle Light Color

Hi guys!

I would like to know if there is a planning or possibility to add the light color changing on Kindle. I have one but i cant use at night because it messes with my sleeping...I would like so much an option like the app f.lux that have the same action and I use all the time
I really like the Kindle device but in some areas it lets me down very much...:(

If you could please enlight me it would be wonderful,

Thanks in advance