Alert me when data goes stale, not just when it disconnects
Disconnection is loud. The dangerous state is quieter: connected, but nothing arriving.
What I'd like is a configurable staleness alert — if no update has arrived for N seconds during hours I've marked as active, tell me. For a liquid symbol during active hours, silence is information.
This came out of the status-indicator bug thread, but I think it belongs as a real feature rather than just a fix to the light. The indicator tells me when I look. An alert tells me when I'm asleep.