In order for this to work, you'll need to have a Pixel phone running the latest available version of the Android P beta (currently Beta 3 / Developer Preview 4). Essential Phone users who have joined their respective Android P beta program also have this update as well.
In fact, Google's Dave Burke said in a blog post that the latest beta takes us "very close to what you'll see in the final version" of Android P. Although Burke didn't list any specific new features being added in the latest beta, there are a bunch of bug fixes and optimizations included in the latest update.
Today has been a big day for Android updates.
They also tweeted that the new Android P Beta build with July security patches is rolling out. The package includes "near-final" UI and APIs on level 28 and expanded developer tools. While last year's Made by Google device launched with Android 8.0, it featured a number of exclusive features like bright/dark system theme, new Power menu, and translucent Pixel Launcher on the visual front.
Meanwhile, users can breakdown app usage with hourly and daily graphs that feature a quick shortcut to enable the App Timer.
Android P will bring support for the notch on the operating system, along with new features like smart notifications, a redesigned notifications shade, improvements to battery life, which will be driven by machine learning as well.
We're conflicted because Google's described the new release as "an early release candidate build" and says the full release is due "later this [northern] summer". However, the settings pages and other elements of Android will not change.