I'd like to change the apple on the FileVault login screen to something else. I've searched Google, but none of the links I've found have worked. They all suggest changing one or more of the following, none of which seems to work:
/System/Library/Frameworks/AppKit.framework/Versions/C/Resources/NSTexturedFullScreenBackgroundColor.png
/System/Library/PrivateFrameworks/LoginUIKit.framework/Versions/Current/Frameworks/LoginUICore.framework/Resources/apple.png
/System/Library/PrivateFrameworks/LoginUIKit.framework/Versions/Current/Frameworks/LoginUICore.framework/Resources/appleLinen.png
I've changed those, but the apple remains on the FileVault login screen. As Daniel Beck points out, that's because those files are on the encrypted disk, and thus couldn't possibly be what FileVault is using to show the login screen.