Customise Global-Protect-Login

I have set this up and its not working <script>

// Customizations - pass in values below. Used in GlobalProtect login page

// and also getsoftwarepage

// Change customization of 'GlobalProtect Portal Home Page' to get uniform look

// var favicon = ''; // URL to the icon displayed in browser's address bar

// var logo = ''; // URL to the company logo

var bg_color = '#D3D3D3'; // Background color

// var gp_portal_name = ''; // Text under company logo

// var gp_portal_name_color = ''; // Color for text under company logo

// var error_text_color = ''; // Text color for logon failure message

</script>

</head>

<body>

<div id="heading">RAFA Staff Access Portal</div>

<pan_form/>

</div>

</body>

</html>

But as you can see from the image attached I still get the new (ugly) palo stripes, without anyway of removing. The background should be grey. Also there is no documentation to support PANOS 10

NO surprise there!!