Full screen slider behind transparent header

Hi

I’ve looked for an answer in the Unicon forum but can’t find one, nor a way to achieve it in the theme config. I want to have a full screen slider (I’m using Smart Slider 3 plugin) which shows behind the logo and menu. Whatever settings I try the slider only shows from below the header, which has a white background. How do I achieve this please?

Thanks

Tim

Ticket