nope Gallo,
Those chicks are andalusian blues, the normal blue. Lavender is a very pale blue and is a gene unto itself. It is recessive , which means both parents have to have a copy of it for it to show in the offspring. Yes it does dilute red/gold to a pale buff color. A good common case of this it a porcelain. Porcelain is nothing more than a lavender based mille fleur. So now you can kinda have an idea of it's effect on the colors. It only dilutes reds and golds, covers black and blue, no other colors are effected by it