How to - set traits
Traits are inherited to your offspring. Males and Females can set traits in their HUD. And here is how you do it:
click your HUD
Select "Assistant" -> "My body" -> "Traits"
Set your preferred colours that you wish to give to possible offspring.
Once you are done touch your HUD again, select "Status" and "Changelog" - so you can see what you did, as control
When it comes to the birthing scene the baby can show those entered colours on its skin or hair. Or a mix if the other parent had other colours.
Disclaimer:
the colours are not going to be translated into other languages than English for now, for programming reasons
the baby on "test delivery" will be grey as no colours are assigned there.