Really think the creation of the .png and the ITM is where I went wrong.  I did a video conference with your Autodesk's "schedule a call"  and they were just as perplexed.  The files created in the Imperial content folder are not selectable when i go to create a new service in Fabrication. 

http://help.autodesk.com/view/FABRICATION/2017/ENU/?guid=GUID-8BF4B16F-339E-4730-82FC-29B8ACB9CF74

He gave me this link so I'm seeing if I missed a step...