overlay
List of active OverlayItem alarms. When all alarms become inactive the list of OverlayItem alarms is empty( const OverlayItemAlarmsListRef.size() == 0).
List of active OverlayItem alarms. When all alarms become inactive the list of OverlayItem alarms is empty( const OverlayItemAlarmsListRef.size() == 0).