{
  "version": 1,
  "seed": 1,
  "theme": "light",
  "canvas": { "width": 640, "height": 400 },
  "data": {
    "sales": [
      { "month": "Jan", "revenue": 120 },
      { "month": "Feb", "revenue": 180 },
      { "month": "Mar", "revenue": 150 },
      { "month": "Apr", "revenue": 260 },
      { "month": "May", "revenue": 230 },
      { "month": "Jun", "revenue": 310 }
    ]
  },
  "elements": [
    { "type": "axes", "table": "sales", "x": "month", "y": "revenue" },
    { "type": "bars", "table": "sales", "x": "month", "y": "revenue", "fill": "accent" },
    { "type": "text", "x": 0.12, "y": 0.04, "text": "Revenue by month", "size": 16, "fill": "fg" }
  ]
}