title: Change color of stacked bar chart
body: <p>I want to change the color of single bar of <code>stacked bar chart</code> in to two types.
  Lets say, I have two option <code>APP Used</code> and <code>APP not used</code>. I want to have a green color for <code>APP used</code> and red color for <code>APP not used</code> option. The default was black and green so I do not want that. I tried to change color by adding following option  but it made the whole bar same color:</p>
  
  <pre><code> colors: [
       '#4572A7',
       '#AA4643'],
  
   plotOptions: {
       column: {
           colorByPoint: true
       }
   },
  </code></pre>
  
  <p>However, I want to have the different color for each category.
  Here is demo: <a href="http://jsfiddle.net/rkahuja99/qqes1sw6/" rel="nofollow">http://jsfiddle.net/rkahuja99/qqes1sw6/</a></p>
  
  <p>Any help will be highly appreciated.</p>