This document provides an overview of building Plex XAML user interfaces. It discusses: - The speakers for the session on XAML - An introduction to XAML, which is an XML-based language used to declare object structures for WPF and UWP applications - How XAML is used for each Plex function panel and globally for the application executable - Exercises that will have attendees set up projects and customize XAML - Tips for customizing the CA Plex App.xaml templates prior to executable creation and including custom templates - An example Twitter application that obtains access tokens, calls APIs via the tokens, handles JSON results, and uses the