Symfony2中的jQuery UI图像

Question

I'm having issues getting the images from jQuery-ui to show up properly in my symfony2 application.

The setup is straightforward - I used composer to get the "components/jqueryui" and included this in my config file:

assets:
    css_jqueryui:
        inputs:
            - %kernel.root_dir%/../vendor/components/jqueryui/themes/base/jquery-ui.min.css
        filters: [cssrewrite]

However the images are broken - I get a 404 error and the paths get rewritten to ../../images/* (with or without the rewrite filter).