I added the logo to
Appearance > Theme Options > General > Logo
But, on the new retina-ready devices laptops, Surface tablets, iPads, iPhones, the logo is fuzzy.
Is there a way to add code to display a 300dpi version of the logo on retina-ready devices. Can we add code in Style.css that would detect it, like with responsive layout, or add a plugin? I found and installed http://www.meow.fr/wp-retina-2x/ , but it doesn't seem to work for me.