Visualize Regions In Area Map - Neodash

Hi!
In the documentation page of Area Map visualization of Neodash it is written that:

the supported format for the region polygons is ISO 3166.

And there is an example of italian regions. So I am italian and I would like to reproduce that visualization. So I have downloaded italian regions ISO 3166 codes from wikipedia and I have added those properties to my Regions nodes:

MATCH (r:Regione) RETURN r.nomeRegione, r.regCode LIMIT 5
╒════════════════╀═════════╕
β”‚r.nomeRegione   β”‚r.regCodeβ”‚
β•žβ•β•β•β•β•β•β•β•β•β•β•β•β•β•β•β•β•ͺ═════════║
β”‚"Abruzzo"       β”‚"IT-65"  β”‚
β”œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€
β”‚"Basilicata"    β”‚"IT-77"  β”‚
β”œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€
β”‚"Calabria"      β”‚"IT-78"  β”‚
β”œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€
β”‚"Campania"      β”‚"IT-72"  β”‚
β”œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€
β”‚"Emilia-Romagna"β”‚"IT-45"  β”‚
β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜

Now I am trying to create an Area Map visualization trying to coping the documentation page, adding this cypher query into the Area Map settings :

MATCH (r:Regione)<-[:HA_REGIONE]-(p:Provincia)
RETURN r.regCode AS code, count(p) AS totalCount

But nothing happens. What I am doing wrong?

Answered here: