does zencart have any means with which i can change the entire background color of the store pages, add a background image, change page dimensions etc?

ive been working with the software for 2 yers now, and im still learning new stuff.

want to manipulate my boring store http://www.fox-stock.com/index.php
somewhat like these people.

http://www.frontrangeoffroadfab.com/nfoscomm/catalog/
although they do run osCommerce

thank you.