[Q] The so called Optimized Backlight topic

Or does anyone know how to turn off this annoying misfeature?

Optimized Backlight is the name sony gave to the screen content dependent backlight setting. If your screen has a big proportion of white or other bright colors, the backlight will be brighter as well, if the content is mostly dark, then the backlight will get darker.

This is independent from the adaptive backlight setting and can not be turned off.

I did try CM11 to get rid of it, but CM11 also has this feature.