2
if your are using an externeal style sheet this wont' work but there are several ways of finding a solution for this:
-- you may use inline style in e.g. theme.html within head tag
or :
using <{$xoops_imageurl}> within themefile will cause templateengine to render this but not within an external stylesheet.
Perhaps you find some interesting stuff in this article
eastereggsto get a solution for your display idea ?
let your head render this ..
michael
edit: <{$xoops_imageurl}> here is meant in this example as an smarty expression which could be used in style sheets or expressions . you may assign your own smartys go get your wanted solution.