title: Setting the pie slice colors in MPAndroidChart
body: <p>I need to define specific hex values for each slice in my pie chart.</p>
  
  <p>I'm following the <a href="https://github.com/PhilJay/MPAndroidChart/wiki/Setting-Colors" rel="noreferrer">wiki</a> but the method doesn't seem to be working for <code>PieDataSet</code></p>
  
  <pre><code>PieDataSet dataSet = new PieDataSet(entries, "Fuel");
  dataSet.setColors(new int[] { R.color.green1, R.color.green2, R.color.green3, R.color.green4 }, Context);
  </code></pre>
  
  <p>These errors are shown:</p>
  
  <pre><code>Cannot resolve symbol 'green1'
  
  Expression expected  &lt;-- At the 'Context'
  </code></pre>
  
  <p>Is there an alternate way to set the pie slice color? This seems to work for Line charts but not for pie.</p>