Android 7.0 Nougat
is here and sadly, you can no longer enable the secretive Night mode feature that shifts the display's color spectrum towards the warmer side.
Or can't you, really?
It seems that while the option to do so is no longer visible in the hidden System UI Tuner menu, Android still has baked-in support for that feature. Thanks to the restless Android community that never misses a thing, there is a workaround that allows you to enable Night mode on your Nougat-running device thanks to an app.
Unsurprisingly, it's called Night Mode Enabler. Figures. After you launch it, you will be prompted to enable System UI Tuner by long-pressing the Settings' gear icon in your notification shade. Then, you need to get back to the app, tap the "Enable Night Mode" button that has appeared, and you will be sent to a dedicated menu.
There's a toggle that should enable the feature, but weirdly, it doesn't - what you need to do is tap the background on the immediate left of the toggle.