So… keep in mind I stumbled on this.
Free-range eggs in grocery stores are painted/dyed.
Whatever the grocers are advertising regarding chicken conditions have been a lie… It’s just there to make sure they keep selling it and for more. Unsure how to legitimately check which ones aren’t simply marketing make-up
When I worked for a guy who kept chickens in the back yard, the eggs came out in every shade from dark brown to white, and some had freckles. I don’t know how they get them to be just two uniform colours (brown/white) in the grocery store, but I assume the white ones must be bleached. Some are naturally brown, others may be dyed.
But I agree that we should be suspicious whenever marketing is involved.