A simple indicator for when airbrakes are deployed, similar to how ground brakes are indicated. It would be even better if this could be paired with an alert in the middle of the screen (again similar to the ground brakes/reverse thrust indicator).
I don't see a logical reason for this not to exist, given that we already have similar indicators, aside from being extra work to only pair this feature with airbrake capable aircraft. (put the fries in the bag )
It would be quite helpful with basically no downsides pls add 
