Transparent Persistent Icon in Notification Bar
How about a transparent persistent icon? If foreground app, it currently has a persistent icon, if not running in foreground, it doesn't but the risk is the Light Flow might be killed. How about a persistent transparent icon to get the best of both worlds (for OCD folks that don't like persistent icons clogging up the notification bar?).
To avoid having a blank spot in the notification bar, force the Light Flow transparent persistent icon to be the rightmost icon on the left half of the bar (to the left of the OS icons but to the right of the app icons)
Would that make sense, you don’t need the persistent icon showing on the actual notification bar to run in the foreground (just in the pull down notification). Having this set to transparent would look off as there would still be the actual notification itself.