The Sparkle components will identify (and load) their resources via the @ResourceDependency annotation.

This is working as expected for .js files, and they are downloaded from the local library.

However, there's an issue with the CSS files: the problem is that all local CSS files from the YUI library don't have it's image URLs in the JSF format. For example, slider.css has something like this:

   background-image:url(rail-x.png);

Instead of something like this:

   background-image:url(rail-x.png.jsf?ln=yui/3_1_1);

So the actual image file cannot be reached. I think we will have to parse all CSS files to add this suffix, so that all URLs are in JSF format, but doing so will add a cumbersome step to our ongoing maintenance of the YUI-based code in Sparkle.

We should identify a better solution that does not require modifying all the std. YUI CSS files, if possible.