I use Hyperion on my MacBook, whenever it's connected to my Desk-Setup with an external Monitor. That means to avoid unnecessary CPU usage and thus battery-consumption I need to quit Hyperion whenever I leave. However as it is I usually forget to do so.
It would be great if Hyperion would recognise whether it's actually in use, and if not stop screen-grabbing to avoid battery drain. If it, for instance either recognise that the LED controller (in my case adalight) is disconnected (erroring out?) or by setting the display capture to a specific monitor by vendor & device IDs, and thus stopping capturing once that display is unavailable.