Notification icon apps

[tennislvr8]

Does anyone know of an app that will allow me, regardless of the app I am using, change the notification icon color. For example, I am using aquamail for email. I have 4 different but necessary email accounts. I would like a different color notification icon for each one. The app developer told me he couldn't do it. I guess I am looking for an app like Lightflow but for notification icons. TIA