I should probably be posting these on Git? I don't have an account.
The title on all admin pages is missing a space between 'Manage' and the sitename so the below renders "ManageSitename"
<title><?php echo __('global.manage'); ?><?php echo Config::meta('sitename'); ?></title>
The green tick is using the wrong asset (white png instead of green gif), so the tick isn't visible in the admin interface.
"hgroup" has been replaced with "header" in the admin interface but the corresponding CSS hasn't been updated, so the menu isn't floating correctly and the header is unstyled.