Note- Only works on Android 8.1 [Stock and Custom Rom]

Features
• Does not require System overlay or Accessibility Service Permission
• Does not run in background, Saving RAM and Battery
• Works fine on low-end devices without making them slow and sluggish
• Chose between 4 different corner
• Set different Status-bar icon spacing
• More to come

How To Use It
• Download & Install Curve
• Open Substratum App
• Open the Theme and chose between different option
• Select "Select to toggle all overlays" Box
• Then Click the floating action button (FAB) down the bottom and select Build & Enable
• Once that finishes compiling/installing with no errors, wait until SystemUI restarts
• Enjoy Rounded Corner

For any help, feel free to contact me via hangouts or G+
( https://goo.gl/kCUQba ) Or on Telegram @allstargaurav

Suggestions and requests are very welcome, contact me via email with any issues prior to rating.

allstargaurav@gmail.com

Credits :
• Krishna AR [For App logo and Banner]
• Nicholas Chum [For Publishing Curve]