I really don't like the default font in Mac OS X Yosemite. Is there some way to change it to something easier to read?
Well the answer is maybe. I didn't like the Helvetica font - it was just not "enough" for me.
I found some likes that allowed me to easily change the font. These links were mostly showing the rather new San Francisco font. Some links may have been removed and I am not sure why but I have the links that work in the techtipguys.com blog.
Here is a link to the step-by-step instructions. Thanks to Wells Riley: