https://www.theverge.com/2017/11/6/16616132/google-screen-color-clicking-saturation-update

The regular, monthly patches for the Pixel are one of the main reasons to buy a Google phone instead of another Android device. This month, however, the company has done more than add the usual security fixes. For the Pixel 2 and Pixel 2 XL, it has also layered on a bunch of bug fixes and new features. The most important of which, as Android Central reports, are new options for color saturation.

It also contains “a fix for the faint clicking noise heard in some Pixel 2s” as well as the subtle changes to the Pixel 2 XL’s display behavior to mitigate against potential screen burn-in — though those latter changes might not be obvious in normal usage, as a Google community manager writes: