How to show a color caption on the Vega Stacked Bar Chart?

Question

I am using this chart: https://vega.github.io/vega/examples/stacked-bar-chart/

I want to show a color note for the chart below.

 But I can't find a solution to apply this type of chart. Do you have any solution for this type of chart?

Answer 1

I found the solution, just add Legend in.

"legends": [
{
  "title": "% of Obese Adults",
  "orient": "right",
  "type": "symbol",
  "fill": "color",
  "format": ".1%",
  "clipHeight": 16
}

],