Feature request!

Love this plugin. Along with it, we're using another plugin that adds a custom class based on role to the body tag of the admin panel. This lets us use CSS to quickly and simply hide elements in the dashboard based on roles. Works great, but unfortunately doesn't different between "administrator" and "superadministrator" roles. Ideally we'd be able have things shown only to super admins. We don't have any dedicated developers on staff, so all of my amateur attempts to write something myself have been unsuccessful. It would awesome if this feature were part of Ultimate Branding! Below is what works for outputting basic WP roles:

function role_admin_body_class( $classes ) {
    global $current_user;
    foreach( $current_user->roles as $role )
        $classes .= ' role-' . $role;
    return trim( $classes );
}

add_filter( 'admin_body_class', 'role_admin_body_class' );

What I want to do is check

if( is_super_admin)

for the current user and output a specific class in the admin body tag if that returns true. So far any time I try to run that query, I get a 500 internal server error. Any ideas??