It could be useful to show pins on top of routes so that an emoji can describe the route as well as a subtitle can be added with eg. how many km’s the route is.
The following formula will only apply a pin on top of the route if there is a route (length != nil) and will then apply colours to the markers and routes that it gets from the category field.
length != nil ? ([pin(category).markerColor(Color(category)), geometry.strokeColor(Color(category))]) : (pin(category).markerColor(Color(category)))
Find an example in use here: mapar.one