Fuzzy, lavender is actually a genetic color, also (although confusingly) called "self blue". As opposed to a pattern. To get lavender birds you have to start with birds carrying the lavender gene (lav, the recessive form, codes for lavender, while Lav, the dominant form, will not be lavender). Both parents must carry the recessive lav gene for the offspring to be lavender.
ok here's my limited understanding, probably wrong: Ok so i put my white and black roo with my brown and (blue) hen. According to the kippenger chicken calculator, all my hens will be black and white, and my roos will be brown and black. So then if i have one lav hen with my boy too, and then one lav roo for the new hens, and then between the 2 lines shouldn't they have some lavender? I know they should, but the problem is that lavender dilutes black, and red, and buff same as blue. Only color not supposed to is white, but mine's recessive white i think and not the silver i thought he was...
So my wondering is if i can use the white to repell the lav in some spots, then fill it in with red after the lav is in? My bird's color changed in adult molting, so the color is unstable... my hen is getting white in her head feathers, and my roo is now black with white,instead of white with black. Could the instability work for me in this case?