A free app for Android, by Akshit Gupta.
You may test the many colors that your device's notification LED might support with the LED Color Tester app. Simply choose one of the available colors or make your selection by sliding the slider, clicking the start test button, then turning off the screen to test the notification LED. If you have notifications enabled on your smartphone, this app might not function properly. Before beginning, it is advisable to turn off all notifications. Just the colors that the notification LED on your device can support will be tested by this app. This app's prolonged use could cause the battery to discharge more quickly. Certain phones might not support disco mode.
