There are a number of standard skinning options available on the mobile interface.
You can access these within the Admin Portal, via Displays> Social Hub > Mobile.
Using these tools, you can customise your site's Brand Name, upload portrait and landscape versions of your Brand Image (dimensions listed above) and select from our standard light or dark themes.
Note: You are not required to customise these fields if you don't want to - they will work just fine by default.
Still having troubles? Submit a Support Ticket.