Lavender does work differently. It actually works in a similar fashion as breeding splash to splash...so you shouldn't have a "splash Lavender" but I was just wondering if having a bird with a few dark feathers ever happens. I sure hope she isn't a splash Blue Orpington. I do t breed those and I have zero use for her. I paid $55 for her and if she's a splash Blue Orpington I'll probably sell her for $20.
Sure looks splashy to me also. Has she molted? Can you wait for a molt and see what happens? I've never seen one with dark splotches either.