I am now using this to change the font in Yosemite from Helvetica Neue to Avenir Next. It looks really sharp, but there are some things that just appear as jibberish the font family doesn’t have the correct characters.

I don’t know how long I will keep this, but I am a big fan and the change is pretty easy to do once you build the fonts.

See also:

Try at your own risk.

Posted by Ben Brooks