Recently been visiting the astral a lot and discovered that cabin gunners have a wee-bit of difficulty seeing.. anything. Now I'm too skilled to fall into this category, but! I've developed an add-on to support those assigned to such a job.
It updates as the demons take damage and changes color as well.
Updated for 3.0 by changing the widgets to 3D widgets instead of 2D widgets.
Despite previous reports Astral monsters are still considered part of the avatar Detector's and their range is still visible.