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How does one change the login screen background in Lion 10.7.4

41638 Views 35 Replies Latest reply: Jan 2, 2014 7:08 AM by janthenat RSS
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Sy B Calculating status...
Currently Being Moderated
May 10, 2012 9:53 AM



Prior to 10.7.4 I was able to change the default Lion login screen background by replacing the file at:


/System/Library/Frameworks/AppKit.framework/Versions/C/Resources/NSTexturedFullS creenBackgroundColor.png


After updating from 10.7.3 to 10.7.4 it reverted to the original textured pattern.


Has the location of the default background file changed or the method for changing the background changed.



MacBook Pro, Mac OS X (10.7.4), 10 GB
  • Gerry Brown Level 3 Level 3 (795 points)

    Is the png a new file that was installed with the update?  Try opening it.

  • Michael Black Level 6 Level 6 (17,835 points)

    The update likely just overwrote your version of that file with its own default.  Just redo what you did before to get your custom file back in its place.

  • SP Forsythe Level 5 Level 5 (5,200 points)

    I have the same issue.


    It is not "overwritten". Apple has chenged the manner in which the login background is displayed. My file is still there, but it is no longer being used. I even did a file search to see what files have been changed, and are the same file size as the old original texture file, hoping that I could find the new file Apple uses. No luck.


    Until someone posts a solution, I am in the same boat as you, Sy.

  • Michael Black Level 6 Level 6 (17,835 points)

    I can look on my MBP later.  The way I have always changed this is through the terminal.  I save the original system background file to another name, then copy my image file to the same name as the original default image.  That way, I never have to worry about how the system calls that background image, as the file it needs is always there under the same name.


    Of course, if they've changed the default file name or location, it messes up.

  • SP Forsythe Level 5 Level 5 (5,200 points)

    Michael Black wrote:

    Of course, if they've changed the default file name or location, it messes up.


    That's what it appears they have done. I have "NSTexturedFullS creenBackgroundColor.png", which is my customized file & I have "NSTexturedFullS creenBackgroundColorOLD.png", which is the original Apple file saved as backup, in case I want to change it back. 10.7.4 uses neither.

  • SP Forsythe Level 5 Level 5 (5,200 points)



    That changes the foreground image, but not the background image on my computer. I had not realized you were just wanting to change the Apple image to something else. I am looking to change the linen itself.


    This what the original appleLinen.png file looks like. An Apple.



    But I am glad it solved your quest.

  • Michael Wineke Level 1 Level 1 (5 points)

    Yes. This is broken under 10.7.4.

    My previously working NSTexturedFullScreenBackgroundColor.png image is still there, it just isn't being used. There isn't a new one at that location.

    Preview, and Quicklook confirm it is the same image.



  • Cthulhu Calculating status...

    I was able to change my linen background by changing my


    /System/Library/PrivateFrameworks/LoginUIKit.framework/Versions/A/Frameworks/Log inUICore.framework/Versions/A/Resources/appleLinen.png  to a 2650 × 2650 pixel image, and even though this is not ideal, it filled the screen and "hid" the linen background. It takes a little experimenting to get the right size and positioning of an image for your screen, but it does work.


    Obviously I will keep looking for a more ideal solution, because if I had my way, I would send any image resource containing linen (or those ridiculous torn paper edges and similar UI vomit) to the abyss from whence they came. Why Apple uses these odd patterns in an otherwise clean and well designed UI is beyond me, and why an update seems to make it even more challenging to hack around it is even more odd.

  • NetMasterCH Calculating status...

    Yes, i have the same problem. The File "NSTexturedFullScreenBackgroundColor.png" doesn't change after the 10.7.4 Update. Where is the new File? It's very important for us, then we have a public login information on the customized background. Why does Apple changed this location???

  • Gerry Brown Level 3 Level 3 (795 points)


    If what you need is a login warning, Apple supports that in Lion. Check this support article.

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