I love notifications, however it would be great for some (me) if you could add a device notification to the capability.
For instance, I have an RGB bulb that is normally used in the white mode. It would be great if Notifications could run that bulb to RED for say battery low.
A natural extension of this request might be to be able to blink the light RED if something really important was sensed.
BTW: I realize this request is very low priority, as it should be.