Ensure "Enable Custom Content and Mods" is checked in your game's menu. How To Download & Install Custom Content | The Sims 4
: For easier navigation in Create-a-Sim (CAS), the item includes a custom thumbnail so you can quickly identify the exact style in your inventory. Quick Installation Guide EYELINER #104 by Jul_Haos at TSR
: Unlike older CC, this eyeliner is compatible with the game's makeup slider system, allowing you to adjust opacity, hue, and brightness to fit any Sim's skin tone perfectly. Ensure "Enable Custom Content and Mods" is checked