core + attic (Attic Area): these terms have been either deprecated from the core or extentions, or removed from pending as not accepted into the full vocabulary.

screenshot

Canonical URL: http://schema.org/screenshot

Thing > Property > screenshot

A link to a screenshot image of the app.

Usage: Between 1000 and 10,000 domains
Values expected to be one of these types
ImageObject
URL
Used on these types
SoftwareApplication

Schema Version 3.4