The Pixel 2 and Pixel 2 XL have a "Colors" setting in their display options that lets you tune your screen's color saturation and temperature to your liking by choosing between "Natural," "Boosted," and "Saturated" options. In Android P's Developer Preview 2, the menu now shows a photo—a cloudy sunset behind a couple of palm trees—so you can more immediately see the effects of your choice.
For the longest time, you couldn't control any of the notifications coming on your phone from Android itself. Things like apps running in the background or using battery, networks alerts or your VPN status had to stay there front and center in your notifications until you dismissed them. Then with Oreo's notification channels, you could at least lower the importance of a notification so it didn't take precious space in your drop-down. Oreo 8.1 also introduced one neat change: you could disable notifications for apps running in the background, but that was the only one to be turned off completely.
NFC payments on Android used to be very much free for all, but the company increasingly clamped down as Android Pay (and now Google Pay) rolled out. When a device doesn't pass SafetyNet because of modifications or even an unlocked bootloader, you can't make NFC payments. That was a problem with the first Android P developer preview, but the newly released DP2 does allow you to use Google Pay. Well, in some instances.
In the new Android P Developer Preview, Google added a new API for biometric authentication. Dubbed BiometricPrompt, uninspiring as that may seem, this new API replaces the FingerprintDialog that we got in the last DP. Instead of being limited to one method of confirming a user, BiometricPrompt has support for face, iris, and even in-display fingerprint sensors.
When Android P's first developer preview dropped in March, we noticed a number of changes to the app info settings page. Among the more bizarre was that the option to force stop an app had been relegated to the three-dot overflow menu in the top-right corner. Developer Preview 2 is out today, though, and good news, everyone: it's back to where it makes sense.