title: Marking a single bar in a ReportLab VerticalBarChart
body: <p>I'm generating a bar chart using ReportLab VerticalBarChart. I need one of the bars (each time a different one) to be a different color than the rest, to specify it is the 'chosen' value. </p>
  
  <p>Or else, I need to mark it differently than the other bars somehow. </p>
  
  <p>Any idea how to do that?</p>