Chart engine playground

{
  "meta": {
    "source": "Charts by Nex Flow Automation roadmap (sample JSON model)",
    "units": "date"
  },
  "categories": [
    "Discovery",
    "Design",
    "Engine",
    "Excel Add-in",
    "Beta",
    "GA"
  ],
  "series": [
    {
      "id": "plan",
      "name": "Plan",
      "type": "timeline",
      "points": [
        {
          "category": "Discovery",
          "value": 1767225600000
        },
        {
          "category": "Design",
          "value": 1769904000000
        },
        {
          "category": "Engine",
          "value": 1772323200000
        },
        {
          "category": "Beta",
          "value": 1785542400000
        },
        {
          "category": "GA",
          "value": 1790812800000
        }
      ]
    },
    {
      "id": "engineering",
      "name": "Engineering",
      "type": "timeline",
      "points": [
        {
          "category": "Design",
          "value": 1772323200000
        },
        {
          "category": "Engine",
          "value": 1775001600000
        },
        {
          "category": "Excel Add-in",
          "value": 1777593600000
        },
        {
          "category": "Beta",
          "value": 1788220800000
        }
      ]
    },
    {
      "id": "release",
      "name": "Release",
      "type": "timeline",
      "points": [
        {
          "category": "Beta",
          "value": 1790812800000
        },
        {
          "category": "GA",
          "value": 1796083200000
        }
      ]
    }
  ]
}