Hi John,
Unfortunately Feature Themes are not supported on scenario publish at this point, so you wont see them in the browser or on the iPad InfraWorks 360 app.
The fact that they are not exported to video from the storyboard is a defect that I've logged and we'll look to get that fixed.
Ian McGregor
BIM Technical Consulting Manager
Autodesk Customer Success EMEA
Autodesk, Inc.