What does the light mean on Hivemapper?

Excuse me, could you please clarify what the light on Hivemapper signifies? I've noticed it flashing or changing colors and I'm not sure what each one represents. Is it an indicator of the device's status, like whether it's connected to the network or actively mapping? Or does it have something to do with the quality of the data being collected? Understanding this would be incredibly helpful in ensuring I'm getting the most out of my Hivemapper experience.