Android 9, and maybe 8 but I never checked, offers an opacity setting. I leave the filter on, and the setting to a point where I see an overall display color t

Android 9, and maybe 8 but I never checked, offers an opacity setting. I leave the filter on, and the setting to a point where I see an overall display color temp close to the old NTSC value: 6,500k. Being an 80's kid, values centered on 6,500 were common. I remember the shift upward becoming more common. It was intense! For people who were viewing during the cooler periods, warmer displays are something one can feel. It is a lot like the feeling one gets when stepping outside after a long, device free, period indoors. A 6,500 ish display temp presents an orange tint when compared to most device defaults seen today. For me, this is almost unnoticeable after a brief time. I adapt quickly and basically become unaware. A nice, darker phone theme helps. I really like the warmer settings, but they do have an impact on me. Sleep and eye fatigue. For most things I find I just do not care and will save a really warm session for a movie, or other special time.