MSQSIMS often releases two versions of their creations: a "Skin" and a "Skin Overlay." Understanding the difference is crucial for players: Harry Skin Overlay - The Sims Resource
Because it is an overlay, it does not alter the underlying skin color but instead adapts to it, making it "slider friendly" and compatible with other CAS modifications. Difference Between "Skin" and "Skin Overlay" Harry Skin Overlay by MSQSIMS at TSR
It is Base Game compatible and works seamlessly with all EA skin tones. It is also compatible with the HQ Mod for players who use high-definition settings. MSQSIMS often releases two versions of their creations: