{
  "$schema": "https://vega.github.io/schema/vega/v5.json",
  "background": "white",
  "padding": 5,
  "width": 500,
  "height": 300,
  "data": [
    {
      "name": "source_0",
      "url": "data/world-110m.json",
      "format": {"type": "topojson", "feature": "countries"}
    }
  ],
  "projections": [
    {
      "name": "projection",
      "size": {"signal": "[width, height]"},
      "fit": {"signal": "data('source_0')"},
      "type": {"signal": "projection"}
    }
  ],
  "signals": [
    {
      "name": "projection",
      "value": "equalEarth",
      "bind": {
        "input": "select",
        "options": [
          "albers",
          "albersUsa",
          "azimuthalEqualArea",
          "azimuthalEquidistant",
          "conicConformal",
          "conicEqualArea",
          "conicEquidistant",
          "equalEarth",
          "equirectangular",
          "gnomonic",
          "mercator",
          "naturalEarth1",
          "orthographic",
          "stereographic",
          "transverseMercator"
        ]
      }
    }
  ],
  "marks": [
    {
      "name": "marks",
      "type": "shape",
      "style": ["geoshape"],
      "from": {"data": "source_0"},
      "encode": {
        "update": {
          "fill": {"value": "lightgray"},
          "stroke": {"value": "gray"},
          "ariaRoleDescription": {"value": "geoshape"}
        }
      },
      "transform": [{"type": "geoshape", "projection": "projection"}]
    }
  ]
}