Fonts Look Blurry in OS X Yosemite? Change Font Smoothing Settings Some users of OS X Yosemite have found the Macs new system font, Helvetica Neue, looks blurry and is generally harder to read than Lucida Grande, the system font it replaced. The blurred fonts are sometimes able to be reproduced in screenshots but usually they show up looking normal, which makes demonstrating this issue a challenge