How to use the Nexus 6's hidden notification RGB LED

There's always a lot to learn about any new handset, and when it comes to the Nexus 6, there's not only a new device to get to grips with but also a new operating system in the form of Android 5.0 Lollipop. But it turns out that the Nexus 6 has a little secret up its sleeve. You might have thought that the latest phone in the Nexus range didn’t have a notification LED, but in fact it does – it's just hidden. It's not used by default, but there's nothing to stop you from making it work yourself.