Hello!
I can help you to change the theme on your Symfony website.
As for me I'm a professional web developer with 15+ years of experience. My main specialization is LAMP (Linux, Apache, MySQL, PHP) stack of technologies.
I have deep experience with different PHP Frameworks such as Zend Framework, Symfony, Laravel, Yii, CodeIgniter, CakePHP as well as different open source solutions e.g. Magento Ecommerce platform, WordPress, Drupal, etc.
Please, contact me for further discussions.