How to Change Big Sur Login Screen
How do I change the bright, garish Big Sur "rainbow" screen where you log in?
iMac 27″, macOS 11.6
How do I change the bright, garish Big Sur "rainbow" screen where you log in?
iMac 27″, macOS 11.6
if you are the sole user (not even a guest account) AND file vault is turned off you can go to System Preferences > Users & Groups > Login Options and set "Display login window as" 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.
if you are the sole user (not even a guest account) AND file vault is turned off you can go to System Preferences > Users & Groups > Login Options and set "Display login window as" 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.
Login screen.
Login or FileVault?
Former should be whatever you choose.
FileVault I don't think can be changed (certainly not easily).
Thank you for the detailed explanation and macOS feedback link.
I submitted the Feedback.
you're welcome. :)
How to Change Big Sur Login Screen