MacOS – How to change the lock screen background image in Lion 10.7.4

macosscreen-locksettings

With Lion, I know that, in order to change the lock screen background image, I have to change 

/System/Library/Frameworks/AppKit.framework/Versions/C/Resources/NSTexturedFullScreenBackgroundColor.png

In particular, I used an image with the same size as the resolution of my MacBook screen (1440×900).

So far so good, but after the update to Lion 10.7.4, the lock screen background switched back to the gray texture. I thought that the upgrade overwrote my custom image, but it didn't. I tried overwriting my image, but again, nothing changed.
Now I'm stuck with that dull texture. Can someone help me please?

Note: Please note that I'm not trying to change the login screen background, there are plenty of answers related to that problem.

Best Answer

/System/Library/PrivateFrameworks/LoginUIKit.framework/Versions/A/Frameworks/Log inUICore.framework/Versions/A/Resources/appleLinen.png

This is the new location to change the login screen wallpaper but im still figuring out how to put it to the fullscreen.

Related Question