UPLOAD YOUR OWN HEADER: You will need to have two header sizes: one desktop version and one mobile responsive version (retina-friendly). The retina-friendly version should be double the size of the normal version. We have the theme set up to accept a 265×265 px logo (530×530 px for retina-friendly), but you can easily change this.
Go to Appearance >> Editor >> style.css and search for “.header-image .site-header .wrap“. The comments in the file will walk you through the process of changing your logo. After you’ve changed that, change the mobile logo by searching for the second instance of “.header-image .site-header .wrap” (this is under the Media Queries section). You will also have to go to Genesis >> Theme Settings >> Header and selecting “Image logo” instead of “Dynamic text” (see image):
We’ve made a video to walk you through the process: click here