public function process(ContainerBuilder $container)
    {
        if (!$container->hasParameter('ezdesign.design_list')) {
            return;
        }

        $designList = $container->getParameter('ezdesign.design_list');
        foreach ($designList as $designName => $themes) {
            if (!in_array('standard', $themes)) {
                $designList[$designName][] = 'standard';
            }
        }
        $container->setParameter('ezdesign.design_list', $designList);
    }