Joomla Social Templates: Joomla 1.7 YooTheme Social Media Icons Custom HTML Module. In Joomla 1.7, this tutorial shows how to update Joomla, your YooTheme template, JCE Editor, and then add a Custom HTML Module. The Custom Module includes the code from YooTheme’s Streamline template for Social Media Icons. I am not using that theme, but the steps would be the same. Contact contractorsyoucantrust.com if you have any questions or leave us a comment on YouTube. Please Like this if you found it helpful or useful, or share it if somebody you know needs help.