More informative highlighting for robots to/from selected chest

[quyxkh]

When I'm laying out a bot-fed factory and I want to check robot pathing, the current red/green highlighting for robots coming to the selected chest is helpful but I tihnk it could be much more helpful by always highlighting robots coming to or leaving the chest: red = pickup mission (inbound only); green = delivery mission (if outbound, was pickup, now delivering); white = outbound only, was delivery, now another pickup; yellow = outbound only, was delivery, now idle.

The main question is, "why is this robot going to the other end of the factory?", and currently outbound robots are not highlighted at all so you can't get the robot in question highlighted unless you already know the answer to that question -- but it seems to me it'd often enough be much easier to backtrack to where the robot came from, there's usually some sort of visible hotspot there but I can't get a feel for where the outbounds are going because they're not highlighted, and I'd like them to be.