System.Kind is an enumeration, so the canonical syntax is:

System.Kind:System.Kind#Picture OR System.Kind:System.Kind#Video

Anything else returns weird results on localized Windows versions, for some reason :-)

System.Kind#Picture corresponds to what's explained in the documentation:

For a defined semantic type T with values or ranges named N₁ through Nₖ, the canonical syntax for the ith value or range is the canonical name for T, followed by the character #, followed by Ni