gistfile1.txt

{
      "type": "Feature",
      "id": "SEA",
      "properties": {
        "name": "The Sea",
        "risk": 0
      },
  "style": {
    "backgound-color": "light-blue"
  },
      "geometry": {
        "type": "Polygon",
        "coordinates": [
          [
            [
              -180.000000,
              -90.000000
            ],
            [
              180.000000,
              -90.000000
            ],
            [
              180.000000,
              90.000000
            ],
            [
              -180.000000,
              90.000000
            ],
            [
              -180.000000,
              -90.000000
            ]
          ]
        ]
      }
    }