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 for those impacted by it. It’s hard to know if this is because of a bug, differences in individual displays and monitors, a result of the font face itself, the generally smaller and thinner font size, or the level of text antialiasing used, but manually adjusting the latter by tweaking font smoothing settings can be helpful for some users who are having trouble with the fonts appearance, particularly if the font looks blurry or fuzzy to you on a Mac with a non-retina display.