Is there an Icon key for the PDMprofessional, FileViewer.

2018 SOLIDWORKS PDM Help - Preview Tab 

The same Icons can be viewed if you open the file with the FileViewer.exe found at:

File viewer is found here by default: %ProgramFiles%\SOLIDWORKS Corp 2018\SOLIDWORKS PDM\FileViewer.exe

I'm trying to figure out what the difference is in the icon shown for PartNo in the @ and Default configs as shown below. One shows a file like icon .  The other shows a database with an x . Then other variables at the bottom show a spur, or gear. 

As a Bonus question, is there a way to change the default #Display order of these properties in the Preview Tab?

@Config:

Default Config: