Add site logo and align

Paul,

You probably understood from my silence, I don’t have the answer to your question about the logo hover, sorry. Ultimately, my only advice would be to force the hover color back to your background color for this item. Like so, obviously untested:

#wpadminbar .ab-top-menu > li.wp-admin-bar-326:hover > .ab-item,
#wpadminbar .ab-top-menu > li.wp-admin-bar-326.hover > .ab-item {
    background: #555;
}

(But then, your users may miss the link over this item…?)

Hope This Helps,
Guillaume