anchor.diff:                  "name" : "String. Localized name variants are in properties like 'name:en'. Common value.",
                   "id" : "Integer. Common value.",
                   "source" : "String. Common value, one of: openstreetmap.org, naturalearthdata.com.",
  -                "kind" : "String. Common value, one of: aerodrome, airfield, allotments, amusement_ride, animal, apron, aquarium, artwork, attraction, aviary, battlefield, beach, boatyard, breakwater, bridge, camp_site, caravan_site, carousel, cemetery, cinema, city_wall, college, commercial, common, container_terminal, crane, cutline, cutting, dam, danger_area, dike, ditch, dog_park, embankment, enclosure, farm, farmland, farmyard, fence, fence, ferry_terminal, footway, forest, fort, fuel, garden, gate, generator, glacier, golf_course, grass, groyne, guard_rail, hanami, harbour, hospital, industrial, kerb, land, library, maze, meadow, military, mud, national_park, nature_reserve, naval_base, orchard, park, parking, pedestrian, petting_zoo, picnic_site, pier, pier, pitch, place_of_worship, plant, plant_nursery, playground, port, port_terminal, power_line, power_minor_line, prison, protected_area, quarry, quay, railway, range, recreation_ground, recreation_track, residential, resort, rest_area, retail, retaining_wall, rock, roller_coaster, runway, rural, school, scree, scrub, service_area, shipyard, snow_fence, sports_centre, stadium, stone, substation, summer_toboggan, taxiway, theatre, theme_park, tower, trail_riding_station, university, urban, urban_area, village_green, wall, wastewater_plant, water_park, water_slide, water_works, wetland, wharf, wilderness_hut, wildlife_park, winery, winter_sports, wood, works, zoo.",
  +                "kind" : "String. Common value, one of: aerodrome, airfield, allotments, amusement_ride, animal, apron, aquarium, artwork, attraction, aviary, bare_rock, barren, battlefield, beach, boatyard, breakwater, bridge, camp_site, caravan_site, carousel, cemetery, cinema, city_wall, college, commercial, common, container_terminal, crane, cutline, cutting, dam, danger_area, desert, dike, ditch, dog_park, embankment, enclosure, farm, farmland, farmyard, fence, fence, ferry_terminal, footway, forest, fort, fuel, garden, gate, generator, glacier, golf_course, grass, grassland, groyne, guard_rail, hanami, harbour, heath, hospital, industrial, kerb, land, library, maze, meadow, military, mud, national_park, nature_reserve, naval_base, orchard, park, parking, pedestrian, petting_zoo, picnic_site, pier, pier, pitch, place_of_worship, plant, plant_nursery, playground, port, port_terminal, power_line, power_minor_line, prison, protected_area, quarry, quay, railway, range, recreation_ground, recreation_track, residential, resort, rest_area, retail, retaining_wall, rock, roller_coaster, runway, rural, sand, school, scree, scrub, service_area, shingle, shipyard, snow_fence, sports_centre, stadium, stone, substation, summer_toboggan, taxiway, theatre, theme_park, tower, trail_riding_station, university, urban, urban_area, village_green, vineyard, wall, wastewater_plant, water_park, water_slide, water_works, wetland, wharf, wilderness_hut, wildlife_park, winery, winter_sports, wood, works, zoo, low_emission_zone.",
                   "kind_detail" : "String. Common optional value.",
  -                "sort_rank" : "Integer. Suggestion for which order to draw features (lower values are bottom, bigger values on top). Common value.",
  +                "min_zoom" : "Number. A suggested minimum zoom at which the features should become visible. Common value.",
  +                "sort_rank" : "Integer. Suggestion for which order to draw features (lower values are bottom, bigger values on top). Common value.",
  +                "collision_rank" : "Integer. Common property. Suggestion for which order labels should collide. Use as tie breaker with min_zoom.",
                   "area" : "Number. Spherical Mercator area in square meters, polygons only. Common optional value.",
                   "protect_class" : "String. Common optional value, one of: 1, 2, 3, 4, 5, 6.",
                   "operator" : "String. Example: United States National Park Service. Common optional value."
  
positive.code:                 "snowshoe" : "String. For ski pistes. Optional value.",
                  "sport" : "String. Optional value.",
                  "state" : "String. Optional value.",
                  "symbol" : "String. For ski pistes. Optional value."
              },
              "maxzoom" : 16.0,
              "minzoom" : 5.0,
  
negative.code:         40.764372,
          15
      ],
      "description" : "Worldwide vector tiles from the Tilezen community, v1.7.0",
      "format" : "<%= @params[:format] %>",
      "maxzoom" : 16.0,
      "minzoom" : 0.0,
  