The Quick Settings Tile API was added as part of Android 7.0 Nougat to allow developers and third-party apps to make use of the drop-down toggles, which are one of the easiest and most user-facing ways of quickly changing settings on Android. Over the many months since it’s been available, the API has been used extensively to add many options and shortcuts to the Quick Settings, some we have expected and others are a little more eccentric.
20+ Apps that use and augment Android Nougat’s Quick Settings Tiles was written by the awesome team at Android Police.