title: Random colors by default in matplotlib
body: <p>I had a look at Kaggle's <a href="https://www.kaggle.com/residentmario/univariate-plotting-with-pandas" rel="nofollow noreferrer">univariate-plotting-with-pandas</a>. There's this line which generates bar graph. </p>
  
  <p><code>reviews['province'].value_counts().head(10).plot.bar()</code></p>
  
  <p>I don't see any color scheme defined specifically. 
  I tried plotting it using <code>jupyter notebook</code> but could see only one color instead of all multiple colors as at Kaggle.</p>
  
  <p>I tried reading the document and online help but couldn't get any method to generate these colors just by the line above.</p>
  
  <p>How do we do that? Is there a config to set this randomness by default?</p>
  
  <p><a href="https://i.stack.imgur.com/65U05.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/65U05.png" alt="At Kaggle:"></a></p>
  
  <p><a href="https://i.stack.imgur.com/72jc9.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/72jc9.png" alt="Jupyter Notebook:"></a></p>