On the Roku Search screen how do I add those 4 images

Hi All,

I'm using Direct Publisher

On the Roku Search screen how do I add those 4 images. Or can I just remove the 4 image boxes that have a square mountain with a moon. 

Or can I added my branding to that screen.

Click on search-> You will see 4 boxes that do not have images. 

Any help would be great.