I would like to see my planned road in a distinct color, whereas the travelled road should be in another color. this makes sense, if the car is turned around.
As far as I understood planned_road_visited should do the trick, but Igo seems to ignore planned_road_visited.

any ideas?

planned_road="", 110,96,179
planned_road_ext="", 66,58,108
planned_road_visited="", 88,77,144
planned_road_visited_ext="", 66,58,108