title: polar plot : remove edge?
body: <p>I am brand new to Python. I used matplotlib to make a polar plot following the generic code:</p>
  <pre><code>ax = plt.subplot(111, projection='polar')
  bars = ax.bar(theta, radii, width=width, bottom=0, color=[1, 0, 0])
  </code></pre>
  <p>Does anyone know if/how I could remove the green edge where the red slice is? I tried to control the axis color (set it to white and make it thick for example), but didn't manage so far.</p>
  <p>thanks a lot!</p>
  <p><a href="https://i.stack.imgur.com/jZds1.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jZds1.png" alt="polar plot" /></a></p>