[json] graphset > legend > header

<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <title>ZingSoft Demo</title>

  <script nonce="undefined" src="https://cdn.zingchart.com/zingchart.min.js"></script>
  <style></style>
</head>

<body>
  <div id='myChart'></div>
  <script>
    ZC.LICENSE = ["569d52cefae586f634c54f86dc99e6a9", "b55b025e438fa8a98e32482b5f768ff5"];
    let chartConfig = {
      type: 'bar',
      legend: {
        header: {
          text: 'Legend Header',
          backgroundColor: '#90f',

          mediaRules: [{
            maxWidth: 400,
            backgroundColor: 'red'
          }],
        },
      },
      plot: {},
      series: [{
          values: [11, 26, 7, 44, 11]
        },
        {
          values: [42, 13, 21, 15, 33]
        },
        {
          values: [23, 24, 13, 4, 18]
        }
      ]
    };

    zingchart.render({
      id: 'myChart',
      data: chartConfig,
      height: 400,
      width: '100%'
    });
  </script>
</body>

</html>

<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <title>ZingSoft Demo</title>

  <script src="https://cdn.zingchart.com/zingchart.min.js"></script>
</head>

<body>
  <div id='myChart'></div>
</body>

</html>

let chartConfig = {
  type: 'bar',
  legend: {
    header: {
      text: 'Legend Header',
      backgroundColor: '#90f',

      mediaRules: [{
        maxWidth: 400,
        backgroundColor: 'red'
      }],
    },
  },
  plot: {},
  series: [{
      values: [11, 26, 7, 44, 11]
    },
    {
      values: [42, 13, 21, 15, 33]
    },
    {
      values: [23, 24, 13, 4, 18]
    }
  ]
};

zingchart.render({
  id: 'myChart',
  data: chartConfig,
  height: 400,
  width: '100%'
});