UAV Status
The UAV Status widget shows you an overall statistic on the states of the UAVs in the swarm. UAVs are clustered into four non-overlapping sets:
- 
The first, green group corresponds to UAVs without any problem.
 - 
The second, blue group corresponds to UAVs with an info-level error code (e.g. initializing).
 - 
The third, yellow group corresponds to UAVs with a warning-level error code (e.g., low battery).
 - 
The fourth, red group corresponds to UAVs with severe/critical errors (e.g. GPS outage or compass error).
 
If you move your cursor over the widget, you get a list of actual physical IDs for each group as a tooltip.