just updated my phone to the latest build 6.0.B.3.162 using the PC Companion software ! this update might be for fixing the bugs ! now i feel that at 100% brightness the yellow does not turn into a greenish tinge but i guess the default sunflower wallpaper looks somewhat weird and not natural at that level of brightness ! also the google search bar colour has been changed if im not mistaken ! cant yet comment on the impact on battery life !!