I see pink, plum and purple eggs on that chart that isn't the real color of the eggs. I think the only eggs those colors are some South American breeds that aren't available in the US and perhaps some Croad Langshans only available in the UK.
Just because a breed is supposed to lay a dark egg...
No, they're all first generation. the olive egger pullets are from the same pairing. If you notice the penedesenca eggs are various shades. I assume the pullets laying the darker olive are applying more brown pigment just like the ones laying the darker brown eggs.