Those of you who installed the
Android 7.1 Nougat developer preview on their trusted
Nexus 6P, might have been sorely disappointed to see that the night view regime had disappeared from their handset in this build. In 7.1, the option is called Night Light, and is
available only on the Pixel phones, as it needs a dedicated driver to work.
Night mode is pretty useful for reading when there is little to no ambient light around, as it filters away the annoying blue light which, at least in theory, is the one messing with your sleep patterns. Such modes usually bring a warm reddish or yellowish overcast to your screen ("amber" in the case of Night Light), so the brain doesn't get tricked into thinking it's daylight, and choose to stay restless precisely when you have to go into deep slumber.
There is a rather easy way to bring this night mode back on your Nexus 6P with the Nougat dev preview, though, involving a simple mod created for the purpose. Here's what you need to do:
2. Go to Settings > Display, and turn Night Light mode on
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