My Android (Pixel XL) has it built in as "Night Light" in the Display settings which I prefer. I've used both Twilight and f.lux (rooted only) on Android in th

My Android (Pixel XL) has it built in as "Night Light" in the Display settings which I prefer. I've used both Twilight and f.lux (rooted only) on Android in the past and Twilight's defaults are rough and needs too much fuss & attention to get the settings right. f.lux was buggy even tho I was rooted. "Night Light" is OK.