Color and pattern male

Head: silvery- white.

Crest and beard: silvery-white with crescent-spangles.

Hackles, back, shoulders and wing-bows: silvery- white, each feather ending in a elongated V-shaped black spangle, proportional in size to the feather.

Tail: main-feathers silvery-white with black strong crescent-spangle; sickles silvery- white with a black strong crescent-spangle at the tip, transitioning into a narrow lacing along the feather.

Wing-bars: silvery-white, each feather ending in a glossy green-black large crescent-spangle, resulting in two distinct green-black bars across the wings.

Wing-flights: silvery-white with a green-black crescent-spangle at the feathertips; some transition from crescent to lacing permitted.

Front of neck, breast and belly: silvery-white, each feather ending in a glossy green-black crescent-spangle.

Flanks and thighs: similar to the breast, but the feathering below is predominant black.

Fluff: almost entire black with some white tinge.

Down: dark gray.

Serious faults 

Grey or yellowish ground-color. Rust on shoulders. Too weak or too strong crescent-shaped spangles. Complete deviation from crescent-shape.

Faults 

Serious faults to a lesser extent.

Color and pattern female

Head: silvery-white.

Crest and beard: silvery-white with crescent-spangles.

Neck-hackle: silvery-white ,each feather ending in a more or less elongated V-shaped black crescent-spangle.

Back, tail-coverts, front of the neck, breast, belly, smaller wing-coverts and wing-flights: silvery-white, each feather ending in a glossy green-black crescent-spangle.

Tail: main-feathers entire black or black with silvery-white at the base.

Wing-bars: deep silvery-white, each feather ending in a glossy green-black large crescent-spangle, resulting in two distinct green-black bars across the wing.

Flanks and thighs: similar to the breast, but the feathering below is predominant black.

Fluff: almost entire black with some white tinge.

Down: dark-grey.

Serious faults 

Grey or yellowish ground-color. Rust on shoulders. Too weak or too strong crescent-shaped spangles. Complete deviation from crescent-shape.

Faults 

Serious faults to a lesser extent.

Genetic code: https://kippenjungle.nl/Overzicht.htm

Website from Henk Meijers with all available information regarding chicken genetics including the world famous 

Chicken Color Calculator