While it is good to know that we now have an official option to use the camera animation ring for notifications, it turns out that Samsung's own plugin suffers from the same dealbreaker as the third-party apps. The plugin's new Eclipse option you can choose lights up the display around the camera hole in colors of your choosing, and you can opt for different pulse durations, too.
The Eclipse effect, however, doesn't work when the screen is off for the most part, defeating the whole purpose of notification lights. When the screen is switched off, you can still get the colorful ring and pulse notifications but only for incoming calls or a few stock apps that don't include the most likely chat or social network notifications you would be after. Bummer.