To change login wallpaper, System Preferences > Desktop & Screen Saver > choose and customize image. When you change your profile photo, the change occurs on all devices using the same Apple ID/Apple ...

Your iPhone or iPad can automatically change the wallpaper of your Home Screen or Lock Screen, and your Mac can do the same with your desktop background. Here's how to do it. Setting a wallpaper is a ...

When you log into macOS every day, one of the first things you see is a circular login picture above your username. On its own, this UI element is how you and other household members will know what ...