Re: Changing notification icons
The image itself is typically compiled with the application's APK. You may be able to extract the APK, locate the image file in question, and replace it, but you'll probably have varying degrees of success. The closest that any third-party application could get would be creating a duplicate notification for each stock application notification, with different icons. You would lose notification actions functionality, and I'm not sure how much of this would be possible. It would happen through the Accessibility API, which I have not used myself. Light Flow uses the Accessibility API to manipulate notifications, and thus, the LED light.
Originally Posted by kcalmol