An 1.5 update and reupload of "Pawns Have Mouths" mod. 1.5-compatible version is mostly identical to the previous one, but some mouths were resized to better fit on the heads.
For those who want a Vanilla Textures Expanded - Facial Animation look for their pawns without a performance impact of an animation mod.
A simple patch that adds a cosmetic mouth to pawns. Inspired by Vanilla Textures Expanded - [NL] Facial Animation, but with non-animated pawns in mind - my goal was to add mouths to stock pawns while retaining vanilla-style heads.
This is done by giving all pawns a cosmetic "normal mouth" gene, which displays one of the randomly chosen mouths. Since it uses a gene, the mod requires biotech to function. Can be added to existing games, but you will have to manually add the mouth gene to all the existing pawns in dev mode. Should not be removed from existing games.
Since it doesn't touch actual head textures, it should be compatible with almost any texture pack out there (though of course heads that already have mouths, such as Malang, will look weird). Performance impact should be negligible. The mouth shapes are based on the mouth shapes of Twemoji pack (CC-BY 4.0).