Visual notification

Whilst the phone screen is off and the handset is set down or on charge. There should be an option where you can have a ring of light motion around the front camera to indicate missed notification. This could be active if the phone is on charge, silent or when not in motion for a long period to visuallyindicate miss notification/s. I know this is possible as I've seen it used to identify the front camera is in use in this beta  version.  I did suggest this on beta 2 or 3 and was told too much drain on the battery. I don't agree as the AOD would drain more battery.