I think I remember complaining that these Lithops bromfieldii v. glaudinae 'Rubroroseus' (C393A) seedlings weren't red enough back when they first hatched. Now they are 3,5 years old. And, yes, this is how small 3 year old lithops are if you don't push them. Just after leaf change that is. They will double in size after a season of growing. Anyway, about the color. I've made a selection of most magenta plants last year and they really are "rubroroseus" and quite impressively so.
The rest of the seedlings bunch from back then is more regular looking, with a couple of magenta kids among them. But they are all individually beautiful of course. Nothing to complain about.