There isn't a way to change the wallpaper of the login screen from the default "Sequoia at Dawn" image. Screensaver and Desktop wallpaper are customizable, but the login screen wallpaper is restricted to the default image. This is very disappointing. Ventura didn't have this problem. Could someone help me?
Mac Pro, macOS 15.1
you can only make the login screen match your user account's wallpaper. you cannot set it as a separate image.
if you are the sole user (not even a guest account) AND file vault is turned off you can go to System Settings, in the Lock Screen tab, and set "Login window shows" to "List of users". then your login screen matches your desktop background.
if you are using file vault or have multiple users, the above will not work. if that's your situation, you will need to wait for apple to address this. it may be worth your time to send feedback directly to apple. Feedback - macOS - Apple
You might start with updating to Sequoia 15.2
you can only make the login screen match your user account's wallpaper. you cannot set it as a separate image.
if you are the sole user (not even a guest account) AND file vault is turned off you can go to System Settings, in the Lock Screen tab, and set "Login window shows" to "List of users". then your login screen matches your desktop background.
if you are using file vault or have multiple users, the above will not work. if that's your situation, you will need to wait for apple to address this. it may be worth your time to send feedback directly to apple. Feedback - macOS - Apple
+1
I'm using Sequoia 15.2 and I still can't customize my wallpaper either.
Unable to change Login screen wallpaper on my MacPro running Sequoia 15.1.1
