title: ChartJS click on bar and change it's background color
body: <p>I'm using chartjs to paint a simple bar chart. The bar chart is clickable and I notice if the user clicks on a bar. Now I'd like to change the background of the bar that has been clicked to indicate that this bar is actively selected.</p>
  
  <p>Is this possible?</p>
  
  <p>Thx</p>
  
  <p>Edit: I've added a small example.
  <a href="https://jsfiddle.net/10n39cLz/1/" rel="nofollow">https://jsfiddle.net/10n39cLz/1/</a>
  The clicked element will be collected using: <code>this.getElementAtEvent(e)</code></p>