[New formula] Show pins and routes by category colour

Formulas
#1

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[0][0]).markerColor(Color(category)), geometry.strokeColor(Color(category))])  
: (pin(category[0][0]).markerColor(Color(category)))

Find an example in use here: mapar.one