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Yes there are. You need them to create the lavenders, as lavender (self blue) is recessive to black. The chart you posted explains how that works. If a black bird is split to lavender, means it carries the lavender gene, though it looks black (phenotype). Blue genetics are completely different...

You might want to get a black split to lavender (self blue) rooster (a black bird that carries the lavender gene) to breed to your girls to help improve feather quality. The shredder gene is associated with the self blue color in other breeds as well. It is something that breeders are working...