Is this a bug or intended behavior? I'm using matplotlib 1.4.3 and IPython 3.2.0 on OS X via conda. Here's an example of what I see: <img width="805" alt="screen shot 2015-08-01 at 11 10 33 pm" src="https://cloud.githubusercontent.com/assets/1217238/9027717/27b0b6be-3915-11e5-9391-c8481eafca64.png">