Wallpaper is a decorative covering applied to the interior walls of a room. It is usually made of paper, but may also be made of fabric, vinyl, or other materials. Wallpaper is available in a wide range of colors, patterns, and textures, and can be used to create a variety of different looks in a room.
In The Sims 4, players can use wallpaper to decorate the homes of their Sims. Wallpaper can be purchased in the Build/Buy catalog, and can be applied to any wall in a room. To apply wallpaper, simply click on the wall you want to cover, and then select the wallpaper you want to use from the catalog. You can also use the eyedropper tool to sample a color from an existing object in the room, and then use that color to find wallpaper that matches.