A free app for Android, by Zunderstruck.

Edge Lighting fix for All Apps is a great tool to customize the look of your phone with Edge Lighting, even if your screen is turned off. It will notify you of anything that’s happening on your phone, from the notifications bar or the notification center. You can choose to show or hide it.

The tool will work for any app that supports notifications, including WhatsApp, Facebook Messenger, Viber, Skype, WeChat, and more. You can customize the color of each notification.

Edge Lighting fix for All Apps is a simple and easy-to-use tool that works even if your screen is turned off. It works on most Android phones.