icon font on sketch 51.2 is not available
Hi
I've already download the font and try to install a font bundle.
but nothing happened on my next step.
![2018-08-20 5 40 47](https://user-images.githubusercontent.com/42537491/44333029-35416180-a4a0-11e8-8ee8-ddce6e6867a3.png)
That's really weird.
My osx system is Mac OSHigh Sierra 10.13.6.
