map-styles.json

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://www2.visus.uni-stuttgart.de/damast/vis/schemas/map-styles.json",
  "$comment": "Definition of map style configuration file, for Leaflet base layer map tiles",

  "type": "array",
  "items": {
    "type": "object",
    "additionalProperties": false,
    "required": [
      "key",
      "url",
      "name",
      "is_mapbox"
    ],
    "properties": {
      "key": {
        "type": "string",
        "minLength": 1,
        "$comment": "(unique) style key"
      },
      "url": {
        "type": "string",
        "minLength": 1,
        "$comment": "URL template for tiles, see https://leafletjs.com/reference.html#tilelayer"
      },
      "name": {
        "type": "string",
        "minLength": 1,
        "$comment": "name to be shown in drop-down menu"
      },
      "default_": {
        "type": "boolean",
        "$comment": "specifies that these tiles are shown by default. optional"
      },
      "is_mapbox": {
        "type": "boolean",
        "$comment": "specifies that these tiles are from MapBox, and that the custom copyright icon should be shown"
      },
      "options": {
        "type": "object",
        "additionalProperties": false,
        "$comment": "additional configuration options. optional",
        "properties": {
          "attribution": {
            "type": "string",
            "$comment": "attribution text to be shown in the lower right of the map. can contain HTML <a> links"
          },
          "accessToken": {
            "type": "string",
            "$comment": "access token for tileset, can be used in `../url` as '{access_token}' (with underscore)"
          },
          "minZoom": {
            "type": "integer",
            "minimum": 0,
            "maximum": 20,
            "$comment": "minimum zoom level for which the layer is shown"
          },
          "maxZoom": {
            "type": "integer",
            "minimum": 0,
            "maximum": 20,
            "$comment": "maximum zoom level for which the layer is shown"
          },
          "minNativeZoom": {
            "type": "integer",
            "minimum": 0,
            "maximum": 20,
            "$comment": "minimum zoom level for which tiles are loaded"
          },
          "maxNativeZoom": {
            "type": "integer",
            "minimum": 0,
            "maximum": 20,
            "$comment": "maximum zoom level for which tiles are loaded"
          }
        }
      }
    }
  }
}