under the same texture tab from before, you want to press import this time.

after this, a window like the one from before with the skin overlay will pop up.

once you select it & click next, it will prompt you to name the file before you make it, so name it something so u know what it is.

under the search bar, i typed ‘storkbite’ which brought up the skin detail asset that is the infant stork bite birthmark thing.

on the home screen, i selected ‘override’ under the blue tab that says CAS, then clicked on that blue CAS tab, which opened a window full of assets from the game.

after this i went back to the home screen of sims 4 studio.click export, and it will export this skin overlay to a png file. once the window pops up, i go to the tab that says ‘texture,’ where you’ll see a picture of the skin overlay.if your favorite skin has a nondefault skin detail/makeup version, open that in sims 4 studio, and a window will pop up. this has to be a nondefault version of a skin overlay-it can be set as a skin detail, or maybe makeup, whatever. first, i went into sims 4 studio, and went file > open > then i clicked the package file of the skin overlay i wanted.whoever has a better way to do this, i’d totally love to know how! this is just how i jerryrigged it for the time being :) it’s also not a way to fix default skins it’s just a way to get your infant to have the skin you like. This is not by any means a long-term fix or even probably the most convenient way to do this, it’s just what i ended up doing for the moment so that the babies would be cute.

For people asking how i figured out how to get things like skin overlays enabled for infants (namely & on my post).

Sims 4 default replacement skin overlay