title: Changing HighCharts background color?
body: <p>I don't really know how to do this.</p>
  
  <p>I need to change background color of this highcharts chart:</p>
  
  <p><a href="http://jsfiddle.net/gh/get/jquery/1.7.2/highslide-software/highcharts.com/tree/master/samples/highcharts/demo/polar-spider/" rel="nofollow noreferrer">http://jsfiddle.net/gh/get/jquery/1.7.2/highslide-software/highcharts.com/tree/master/samples/highcharts/demo/polar-spider/</a></p>
  
  <p>But I don't seem to be able to do so - there doesn't seem to be any clear place to put the background color setting? </p>
  
  <p>I've tried to write many different values in this section:</p>
  
  <pre><code>chart: {
          polar: true,
          type: 'line'
  },
  </code></pre>
  
  <p>But it didn't do anything ( it occasionally broke this script ).</p>
  
  <p>Do I need to change it somewhere in the included .js files? Or can it be done from the level of this loaded script?</p>
  
  <p>JS is really confusing. Can anyone help me?</p>