title: Assets pipeline rails 3 structure
body: <p>I have the following structure in my assets folder of the app :</p>
  
  <pre><code>- app
    - assets
      - application.scss
      - themes
        - mytheme
          - default.scss
  </code></pre>
  
  <p>And in my application.haml.html I do :</p>
  
  <pre><code>= stylesheet_link_tag 'application'
  = stylesheet_link_tag "themes/mytheme/default"
  </code></pre>
  
  <p>Now when I precompile my assets, the application.css is in my public/assets folder but the default.css of mytheme is not there. This gives me always an error in staging environment :</p>
  
  <blockquote>
    <p>ActionView::Template::Error (themes/mytheme/default.css isn't
    precompiled)</p>
  </blockquote>
  
  <p>What do I have to do so that the compiler is taking all my assets to compile?</p>