Re: F.Lux @ Jai
If you considered the way your screen works for a moment you would realise that there is no problem with this.
LCD panels have a white backlight that is usually fixed at one level of intensity, or varied in intensity according to the ambient light. Colour is added by shining the white light through an array of red, green and blue filters. The LCD part of your screen simply blocks or unblocks the light emerging from any one particular filter.
The LCD doesn't care about the screen colour, the filters are passive and the backlight only varies its intensity to adjust for ambient light levels.