Hi, I've just started feeding to OpenSky. I really like the interface - well done.
Dev Idea - on the flight labels can you put + or - in front of the VR number? I've seen 2 aircraft with a VR of 4, and one was climbing, the other descending. Use of + or - in front would easily indicate climb or descent.
Also in the Receiver Profile page map (normal or full[-screen), the Pin icon on the flight label doesn't work, but it does on the main Opensky Explorer map - is that by design?