change wallpaper on login screen?

[CLS7]

Is it possible to change the wallpaper on the login screen in Catalina? On Mojave it was easy to change the wallpaper by change the "Mojave.heic" file under desktop pictures folder. When I look in this folder on Catalina I still see Mojaves wallpaper picture, not Catalina.

 

[h9826790]

Is it possible to change the wallpaper on the login screen in Catalina? On Mojave it was easy to change the wallpaper by change the "Mojave.heic" file under desktop pictures folder. When I look in this folder on Catalina I still see Mojaves wallpaper picture, not Catalina.

I haven't try it yet, but seems now in System/Library/Desktop Pictures/

 

[CLS7]

Strange, I cannot find that file in my folder, is it a hidden file?
[doublepost=1563427779][/doublepost]
[doublepost=1563427816][/doublepost]I found it now

 

[CLS7]

Damn it! I can't replace Catalina.heic file in the desktop pictures folder, seems to be in read-only mode. Well, happy days...

 

[TimothyR734]

You might try this unzip this put it in your Library/LaunchDaemons folder the reboot then try and replace the Catalina Heic

 

[h9826790]

Damn it! I can't replace Catalina.heic file in the desktop pictures folder, seems to be in read-only mode. Well, happy days...

I only did very little test in Catalina, but that file is inside the System folder, need to turn off SIP for modification. So in Catalina, even with SIP OFF still can’t mod it?

BTW, my primary boot drive still Mojave. I can mod anything on the Catalina drive via that.