Center Genesis Header / Logo Image
Text Header
For centering the text header, you have to remove the header widget area using this snippet in your functions.php:
unregister_sidebar( 'header-right' );
Next step is to center the text, adding this to the .title-area in your style.css:
.title-area {
text-align: center;
}
Image Header Version
If you want to center the image header, you have to remove the right header widget area using this snippet in your functions.php:
unregister_sidebar( 'header-right' );
After removing the right header widget area, you have to increase the width of the .title-area:
.header-image .title-area {
[...]
width: 100%;
[...]
}
The logo image should now be centered.