There was a dark system UI in the last two years worth of developer preview (marshmallow and nougat) but were removed both times. Maybe one of these times it will stick aroundThis is my single greatest annoyance with stock android. I mean, what does it really cost them? The whites everywhere is just plain distasteful tbh. At least put the option there. I'm down with the icons but the whites in the app drawer and settings page are just a plain annoyance and to say the pixels are using amoled. I just wish there was a way tbh