A friend of mine, who also has the Nexus 5, suggested an app called Light Flow Lite as a way to use the LED notification light to personalize
your notifications. I downloaded and it have to say it's great!
Here is an overview of the app and a link to download.
Light Flow - Lite allows you to take control of your notification LED (if available on your phone) - even including cycling automatically through all the colors of outstanding notifications. If you've come from using BeBuzz / BerryBuzz on Blackberry phones, then give LightFlow a try!
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