This same process can be done with makeup, too. (you can choose to have your skin overlay replace the other infant skin details instead, like the birth marks on their backs and legs, but you’ll have to scroll through the assets during step 3-4 until you find the one you want your skin overlay to replace.) now, when you go into the game in create a sim and select the stork bite detail, instead of giving your infant sim a stork bite, it will give them the face overlay you selected. click save, and the name you chose earlier will be a package file now that you should put in your mods folder.you’ll want to import the png file that you exported from your favorite skin overlay earlier.

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 3 baby default skin replacement