release notes 2.5.0 demo inherit background color

<!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>
    html,
    body,
    #myChart {
      height: 100%;
      width: 100%;
      margin: 0;
      padding: 0;
    }
  </style>
</head>

<body>
  <div id='myChart'></div>
  <script>
    ZC.LICENSE = ["569d52cefae586f634c54f86dc99e6a9", "b55b025e438fa8a98e32482b5f768ff5"];
    var myConfig = {
      type: "gauge",
      series: [{
          values: [5],
          backgroundColor: "#941111"
        },
        {
          values: [15],
          backgroundColor: "#1b6d33"
        },
        {
          values: [35],
          backgroundColor: "#cc2ab2"
        }
      ]
    };

    zingchart.render({
      id: 'myChart',
      data: myConfig,
      height: '100%',
      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>

html,
body,
#myChart {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
}

var myConfig = {
  type: "gauge",
  series: [{
      values: [5],
      backgroundColor: "#941111"
    },
    {
      values: [15],
      backgroundColor: "#1b6d33"
    },
    {
      values: [35],
      backgroundColor: "#cc2ab2"
    }
  ]
};

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