Chromebooks have a similar option to fl.ux, which can dim the screen according to the time of the day. If you’ve ever used Kindle’s Blue Shade, f.lux, or LineageOS’ LiveDisplay feature, then you know that this means. If you aren’t familiar with any of those, think a red-tinted mode for use at night.
You can access this feature in the developer version of ChromeOS known as Canary. You can access it from the menu bar that has the date and time.
It’s unknown how long it will be until Google rolls out a stable version of its operating system with Night Light built-in. That said, the feature can’t be too far off, given its sighting on Google’s Canary track for Chrome OS.