You might think on-boarding applications like Pixel Tips are annoying and don't bring much value to advanced users, but as it turns out, the app hides a few unannounced features in its code. A teardown brings to light Google's work on cards and passes support in the long-press power menu, automatic call screening in the Phone app, background blurring and auto-framing for Duo, and a post hoc Portrait Mode for Photos.

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