style.json

{
  "version": 8,
  "name": "Adminstrative Area",
  "metadata": {
    "openmaptiles:version": "3.x",
    "maputnik:renderer": "mbgljs"
  },
  "center": [0, 0],
  "zoom": 1,
  "bearing": 0,
  "pitch": 0,
  "sources": {
    "openmaptiles": {
      "type": "vector",
      "url": "https://api.maptiler.com/tiles/v3/tiles.json?key={key}"
    }
  },
  "glyphs": "https://api.maptiler.com/fonts/{fontstack}/{range}.pbf?key={key}",
  "layers": [
    {
      "id": "background",
      "type": "background",
      "paint": {"background-color": "rgba(255, 255, 247, 1)"}
    },
    {
      "id": "landcover-wood",
      "type": "fill",
      "source": "openmaptiles",
      "source-layer": "landcover",
      "filter": ["==", "class", "wood"],
      "paint": {"fill-color": "rgba(213, 236, 201, 1)"}
    },
    {
      "id": "waterway-river",
      "type": "line",
      "source": "openmaptiles",
      "source-layer": "waterway",
      "filter": ["all", ["==", "class", "river"]],
      "paint": {"line-color": "rgba(150, 168, 218, 1)"}
    },
    {
      "id": "water",
      "type": "fill",
      "source": "openmaptiles",
      "source-layer": "water",
      "paint": {"fill-color": "rgba(187, 217, 234, 1)"}
    },
    {
      "id": "boundary_fill",
      "type": "fill",
      "source": "openmaptiles",
      "source-layer": "boundary_polygon",
      "filter": [
        "all",
        [
          ">",
          ["get", "admin_level"],
          ["step", ["zoom"], 0, 4, 2, 6, 4, 8, 6, 9, 7]
        ],
        [
          "<=",
          ["get", "admin_level"],
          ["step", ["zoom"], 3, 4, 4, 6, 6, 8, 7, 9, 8]
        ]
      ],
      "paint": {"fill-opacity": 0.3}
    },
    {
      "id": "boundary_border",
      "type": "line",
      "source": "openmaptiles",
      "source-layer": "boundary_polygon",
      "filter": [
        "all",
        [
          ">",
          ["get", "admin_level"],
          ["step", ["zoom"], 0, 4, 2, 6, 4, 8, 6, 9, 7]
        ],
        [
          "<=",
          ["get", "admin_level"],
          ["step", ["zoom"], 3, 4, 4, 6, 6, 8, 7, 9, 8]
        ]
      ],
      "layout": {"line-cap": "round", "line-join": "round"},
      "paint": {"line-width": ["-", 9, ["get", "admin_level"]]}
    },
    {
      "id": "boundary_label",
      "type": "symbol",
      "source": "openmaptiles",
      "source-layer": "boundary_label",
      "filter": [
        "all",
        [
          "==",
          ["get", "admin_level"],
          ["step", ["zoom"], 3, 4, 4, 6, 6, 8, 7, 9, 8]
        ]
      ],
      "layout": {
        "text-field": "{name}",
        "text-font": ["Noto Sans Regular"],
        "text-max-width": 8,
        "text-size": {"base": 1.2, "stops": [[7, 14], [11, 16]]}
      },
      "paint": {
        "text-color": "#333",
        "text-halo-color": "rgba(255,255,255,0.8)",
        "text-halo-width": 1.2
      }
    }
  ],
  "id": "adminstrative-area"
}