Creating custom SmartArts for MS Office
Not to many available guides and examples. MSDN Exmaple files not available
XSD Schemas are available (sometimes helpfull to understand allowed values)
BlockAgenda & NumberedList as commented examples for simple list-like Smartarts. The common workflow is to create a refrence Smart Art in an empty presentation and adopt the content to create a custom SmartArt.
2 Tasks:
1. Task to zip and deploy custom Smart Art
2. Task to start PowerPoint with a new empty presentation