Fewer http requests using Sprites
see how amazon uses 1 http request, where x-cart would use many because it loads all seperate images.
Logo, add-to-cart, each flag, cart-bag etc.
Robert Lieberman commented
For basic things like Noblesse images sprites would make sense.
Sprites makes xcart very hard to customize. So we will not implement such technology out of the box. But we will think how to create the tool to merge images into one and adapt CSS styles.