[catnipman]

unless they gene-edit these special chickens to also produce egg shells dyed a special color, the possibilities of mixup with non-hypoallergenic eggs is nearly endless, as would be the lawsuits when such mixups inevitably occur ...

[GaltAdonis]

That reminds me (and I've been forgetting to ask anybody this for years,
and YOU volunteered to answer because YOU just reminded me) -

Do (naturally) brown chicken eggs have thinner shells than white?
They certainly seem to.

If so, then WHY? Is this natural? Is it normal?
Are white chickens diets supplemented with calcium? Or something?

I mean - what's the real deal here, anyway? Eh?
Just asking.