matplotlib/matplotlib — pull request #3607 by Carreau (2014-10-02 06:13:40+00:00)
Title: Icon for font awesome 3.2.1 and 4

Should fix https://github.com/matplotlib/matplotlib/issues/3606

Edited from inside github, so should probably be tested first.

I'm not completely familiar wit nbagg, so I may have missed some icons.