Which Undulat breeds come in Gråvinge?

Club breed standards describe Gråvinge for the Undulat.

Undulat pattern

Gråvinge

Budgie mutation: gray wing markings instead of black, the body color diluted by about half.

2 Undulat breeds list Gråvinge. It is in a club standard for 2 breeds.

Breed	WBO	ABS	COM	BS UK
Undulat	Standard (“Greywing”)	Standard (“Greywing”)	Standard (“All Greywings of the Green series; All Greywings of the Blue series (inc. Yellowfaces)”)	Standard (“GREYWING”)
UndulatGråvinge	Standard (“Greywing”)	Standard (“Greywing”)	Standard (“All Greywings of the Green series; All Greywings of the Blue series (inc. Yellowfaces)”)	Standard (“GREYWING”)