{ "$schema": "https://vega.github.io/schema/vega-lite/v4.json", "description": "A simple pie chart with labels.", "data": { "values": [ {"category": "a", "value": 4}, {"category": "b", "value": 6}, {"category": "c", "value": 10}, {"category": "d", "value": 3}, {"category": "e", "value": 7}, {"category": "f", "value": 8} ] }, "encoding": { "theta": {"field": "value", "type": "quantitative", "stack": true}, "color": {"field": "category", "type": "nominal", "legend": null} }, "layer": [{ "mark": {"type": "arc", "outerRadius": 80} }, { "mark": {"type": "text", "radius": 90}, "encoding": { "text": {"field": "category", "type": "nominal"} } }], "view": {"stroke": null}}