title: What was the default color palette for images in seaborn version 0.2?
body: <p>A thing I immediately liked about <a href="http://www.stanford.edu/~mwaskom/software/seaborn/" rel="nofollow noreferrer"><code>seaborn</code></a> was that it set the Matplotlib default color palette for images (<code>imshow</code>, <code>pcolormesh</code>, <code>contourf</code>, ...) to a very good one I had not seen before (black-blue-green-brown-pink-purple-white):</p>
  
  <pre><code>plt.contourf(np.random.random((20,20)))
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/S1kOw.png" alt="Default contourf plot under seaborn v. 0.2.1"></p>
  
  <p>But when I upgraded the package from version 0.21 to 0.3, this default changed to some greyscale:</p>
  
  <p><img src="https://i.stack.imgur.com/nJ8NN.png" alt="Default contourf plot under seaborn v. 0.3"></p>
  
  <p>What is the default color palette from v. 0.2.1 called and how do I get it back?</p>