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    "$schema": "https://vega.github.io/schema/vega-lite/v5.json",
    "title": {
      "text": "Global Smartphone Market Share in 2021",
      "fontSize": 16,
      "fontWeight": "bold"
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    "config": {
      "legend": {
        "labelFontSize": 11,
        "titleFontSize": 12,
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    "data": {
      "values": [        
        {"index": 1, "brand": "Samsung", "share": 17.6},
        {"index": 2, "brand": "Xiaomi", "share": 15.5},
        {"index": 3, "brand": "Apple", "share": 15.0},
        {"index": 4, "brand": "Oppo", "share": 10.2},
        {"index": 5, "brand": "Vivo", "share": 9.8},
        {"index": 6, "brand": "Others", "share": 31.9}
      ]
    },
    "encoding": {
      "theta": {
        "field": "share",
        "type": "quantitative",
        "stack": true,
        "sort": {"field": "index", "order": "ascending"}
      },
      "color": {
        "field": "brand",
        "type": "nominal",
        "legend": null,
        "sort": {"field": "index", "order": "ascending"}
      },
      "order": {
        "field": "index",
        "type": "quantitative"
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    },
    "layer": [{
      "mark": {"type": "arc", "outerRadius": 120}
    }, {
      "mark": {"type": "text", "radius": 90},
      "encoding": {
        "text": {"field": "brand", "type": "nominal"},
        "color": {"value": "black"}
      }
    }]
}