title: matplotlib: Controlling pie chart font color, line width
body: <p>I'm using some simple matplotlib functions to draw a pie chart:</p>
  <pre><code>f = figure(...)
  pie(fracs, explode=explode, ...)
  </code></pre>
  <p>However, I couldn't find out how to set a default font color, line color, font size – or pass them to pie(). How is it done?</p>