I just thought about a (new?) feature for GraphHopper and I am not sure if this feature is already available.
I’d like to add additional visual information to the generated route, like traffic information (red route parts show traffic jams - I know that Blog post https://graphhopper.com/blog/2015/04/08/visualize-and-handle-traffic-information-with-graphhopper-in-real-time-for-cologne-germany-koln/ but this is heading towards a different direction, I think). Another example could be to visualize slopes when calculating a bicycle route, red means ascent, green descent.
Is something like this possible with minimal effort/changes?