Help coloring Deneb heatmap

Doug7983, I see the issue. I had a rogue closed bracket in the data object that I missed. I deleted it and updated the above spec. Try it now.

  "data": {
    "name": "dataset"
    ] //<-- Should not be there
  }

Another great catch Doug7983. That's what I get for trying to rush through it 😆

gist

{
  "transform": [
    {"calculate": "(month(datum['Date'])+1)", "as": "monthNum"},
    {
      "calculate": "datum['monthNum'] + (datum['monthNum'] < 7 ? 6 : -6)",
      "as": "monthSort"
    },
    {
      "calculate": "'FY ' + toString(year(datum['Date']) + (datum['monthSort'] <= 6 ? +1 : 0))",
      "as": "FY"
    }
  ],
  "facet": {
    "column": {"field": "FY", "title": null, "header": {"labelFontSize": 13}}
  },
  "resolve": {"scale": {"x": "independent"}},
  "spacing": {"column": 5},
  "spec": {
    "width": {"step": 30},
    "mark": {"type": "rect", "stroke": "white", "tooltip": true},
    "encoding": {
      "x": {
        "field": "Date",
        "type": "ordinal",
        "title": null,
        "timeUnit": "month",
        "axis": {
          "domain": false,
          "ticks": false,
          "labels": true,
          "labelOpacity": 0.65,
          "orient": "top"
        },
        "sort": {"field": "monthSort"}
      },
      "y": {
        "field": "Category",
        "type": "nominal",
        "title": "",
        "axis": {
          "domain": false,
          "ticks": false,
          "labels": true,
          "labelOpacity": 0.65,
          "labelAngle": 0,
          "labelPadding": 5
        }
      },
      "tooltip": [
        {"field": "Category", "type": "nominal"},
        {"field": "Date", "type": "temporal"},
        {"field": "Growth (MoYaM)", "type": "quantitative", "format": ".1%"},
        {"field": "Growth (WDC)", "type": "quantitative", "format": ".1%"}
      ],
      "color": {
        "aggregate": "max",
        "field": "Growth (WDC)",
        "type": "quantitative",
        "title": "Growth (WDC)",
        "scale": {"domainMid": 0, "reverse": true, "scheme": "blueorange"},
        "legend": {
          "titleBaseline": "bottom",
          "direction": "vertical",
          "format": ".1%",
          "orient": "right"
        }
      }
    }
  },
  "data": {
    "name": "dataset"
  }
}