Extended black ?

[Hatching]

I have partridge cochin hens and barnevelder (double laced) hens that I was planning on breeding to a salmon faverolle rooster. Curious to the colors they would produce I put them into the chicken color calculator here http://kippenjungle.nl/kruising.html

Out of the Partridge cochins it said I would get black patterned salmon, and out of the barnevelder I would get "extended black patterned salmon". What does that mean? Does the "extended: mean they would be solid black ?

thanks for the help