dose dose work on stock MM

Hi i have just bought a lg leon 4g and updated on vodafone uk 6.0 and i dont know for sure if doze works or not there is nothing on the app settings or battery settings to configure doze any help would be great

why dose every AOSP rom for my xperia z1 have a pink haze glitch?

i have been noticing that i cant seem to get a good rom, every 5.0-5.0.1 AOSP rom gives me a pink haze like on some screens like looking at photos and the camera and every 6.0-6.0.1 rom the data dosent work right and has battery drain.
but im more concerned with the pink glitch on LP AOSP, why dose that happen?