The background of the template is not shown and is hierachy from J Template

Hi, 
I'm trying to use the new Kunena 6 with your template, but my site looks so different to the picture that I've seen when I've purchased it. 
Please tell me how to install or config the template to look exactly the Demo on your site.
viragos.info/backup/index.php/forum/index

Thanks!
 

Hi ZeeKee,

Do you want to change the icon of each category?