FAB 3000 has the ability to highlight pads with area/aspect ratio , based off the Stencil Foil thickness you assign (see screen capture below).
Now, lets create a specific DFM Rule Set for checking SMT Stencil Pads, with Foil Thickness 8 mil.
Go to menu: Tools / DFM / DFM Rules Management...
Repeat steps 1-5 if you wish to create more DFM rule sets for different Stencil foil thicknesses, or other checks.
Now, lets run the DFM Check and highlight any errors:
If there are any SMT Stencil violations, they will be highlighted.