It is my "almost white" pullet from Skyline that lays the wonderful plum coloured egg. So far they have been turned into crepes or omelettes before I have managed to get a picture. I was puzzled to see the colour seems to fade as the egg ages and is at its best colour in the first few hours after laying. It seems the Croad Langshan lays a plum coloured egg that does the same thing. Mind you from the pictures their eggs can get really seriously plum!!!.......funny the odd things you find out. I will keep trying but I am a bit of a techno disaster....... If all else fails google up an image for Croad Langshan eggs. There is a picture with four eggs in a bowl and the croad one is about right on my computer.
I've seen some eggs that shade come through my EO girls... It's interesting how much the color can vary from the same hen. ( You know you're close to your girls when you know them by the shape of their egg!)