// Sets the users background
  public function executeUserStylesheet(sfWebRequest $request)
  {
    // Dont load a layout with this template
    $this->setLayout(false);

    // Set the content type
    $this->getResponse()->setContentType('text/css');

    $this->user   = Doctrine::getTable('User')->getUser($this->getUser()->getAttribute('user_id'));

  }


------

userStylesheetSuccess

<?php

  $user_id                    = $user->id;
  $profile_background_color   = $user->profile_background_color;
  $profile_background_image   = $user->background_file_name;

  echo 'body { background:#'.$profile_background_color.' url(/uploads/'.$user_id.'/profile/background/'.$profile_background_image.'); }';

?>