https://preview.redd.it/x6k6lb6b9ndf1.png?width=1000&format=png&auto=webp&s=23f88f7263e2b92fa9d7e488dd239113416d5f3e

This screenshot comparison comes from Android Authority's preview of Android 16, and is characteristic of the new setting: all text, everywhere on the device, is surrounded by a black or white pill that is the exact width of the text. On your keyboard, the apostrophe mark has an apostrophe-width background.

The new "Outline text" setting is described in Android's help docs without screenshots. The old "High-contrast text" mode is no longer described in the help docs. The new setting was mentioned in the Android developers blog post announcing the new AccessibilityManager APIs, but the deprecation of the old setting was not. Neither change was included in the Android 16 release notes.