This document summarizes Mike Bifulco's tutorial on comprehensive theming in Open edX. The tutorial covers the history of theming in Open edX, including the initial Stanford theming and the more recent comprehensive theming approach. It provides steps for setting up a development environment for comprehensive theming and debugging themes, and notes that the directory structure and other aspects are slightly different from the previous theming approach. The document also directs attendees to resources for help with theming and announces that more changes to support comprehensive theming are coming.