Pi Light is a simple, Android P (Pie 9. 0) styled theme for Android 8. 1 devices by Harsh V23, the creator of HyperLoop Substratum. This theme is for android 8. 1 only, substratum suppport for your device is required. Features: Android Pie styled Settings. Rounded Corners (optional). Rounded QS Panel. Rounded Notifications. Large Statusbar (Essential Phone style).