private function addMenuSection(ArrayNodeDefinition $node)
    {
        /** @noinspection PhpUndefinedMethodInspection */
        $node
            ->children()
                ->arrayNode('menu')
                    ->addDefaultsIfNotSet()
                    ->children()
                        ->arrayNode('roots')
                            ->defaultValue(['main' => [
                                'title'       => 'Navigation principale',
                                'description' => 'Barre de navigation principale',
                            ]])
                            ->useAttributeAsKey('name')
                            ->prototype('array')
                                ->children()
                                    ->scalarNode('title')->isRequired()->cannotBeEmpty()->end()
                                    ->scalarNode('description')->end()
                                ->end()
                            ->end()
                        ->end()
                    ->end()
                ->end()
            ->end();
    }