arc_color_mappings.vl.json

{
  "$schema": "https://vega.github.io/schema/vega-lite/v5.json",
  "description": "A simple pie chart with embedded data.",
  "data": {
    "values": [
      {
        "category": 1,
        "value": 4
      },
      {
        "category": 2,
        "value": 6
      },
      {
        "category": 3,
        "value": 10
      },
      {
        "category": 4,
        "value": 3
      },
      {
        "category": 5,
        "value": 7
      },
      {
        "category": 6,
        "value": 8
      }
    ]
  },
  "mark": "arc",
  "encoding": {
    "theta": {
      "field": "value",
      "type": "quantitative"
    },
    "color": {
      "field": "category",
      "type": "nominal",
      "scale": {
        "range": [
          "purple",
          "green",
          "blue",
          "yellow",
          "magenta",
          "brown"
        ],
        "domain": {
          "unionWith": [
            5,
            6
          ]
        }
      },
      "sort": null
    }
  }
}