I'd love that but as JC said I believe kitties are not supposed to have unrealistic furs according to Kittycats.
Different from other traits such as colored eyes or surealistic ears, tails and whatnot that is something Kittycats allows us to breed for.
But maybe a lilac as in the siamese Lilac or lavender such as used in the Oci's is something they dare to challenge.
After all Pandie's and Foxy's are kind of a long shot as well when it comes to realism.
I believe those furs are based on a picture or two which displays a cat with markings which look a little like a fox or a pandie.
But besides those markings the Foxy's have a different nose probably a sort of Foxy nose as well and a bit fox type of nails at least the earlier versions of the Foxy's KC released had that.
Later they took away the littlebit different looking nails I believe.
Perhaps I love to breed for colored furs such as the Chateau Pink, depending on how it looks, but I'm not such fan of the Foxy and Pandie breeds.
I stopped breeding a starter a couple of times when a Foxy or Pandie fur was hidden and I ignore them on the markets as well
I think it is also a taste sensitive matter.
But if you mean Lavender as in the Oci Lavender and Lilac as in the Siamese and the Balinese they may like to bring such Russian.
EDIT I just noticed KC took away the black foxy type of nails from the earlier released Foxies as well the typical nose they still have.
I have an Auburn which I obtained because it has grass eyes I want to use in an other breed line.