Premium box colour and banner graphic

How can I change the Premium box colour?

I also want to chnage the banner graphic if I can to a different one - is that possible?

Thanks.

 

To change background color

Paste this code in Custom CSS
Appearance > Theme Option > Styling Option > Custom CSS

Code:

.content_wrapper .featured_content .featured_post .featured {
background: your color value;}

Banner ribbon is an image you can edit it through photoshop or any other image editing tool.
Go to the
geocrafttheme/images/ribbon.png and edit it.