Mac OS X Lion, the latest OS from Apple has a completely revamped login screen from the previous version of Snow Leopard. There are already many tweaks for changing the Login screen of Snow Leopard but as the Login system is completely different those tweaks wont work in OS X Lion. But with the help of Loginox, you can easily change your Login screen. As OS X Lion is used more and more by many users the demand for different tweaks is increasing gradually.
How To Change Your Mac OS X 10.7 Lion Login Screen
Step 1: Download and Install Loginox from here.
Step 2: Launch the new login screen section and drag the image which you want as the new login screen backround.
Step 3: Click on Set new Login Image and enter the administrative password when prompted.
Thats it, you have successfully changed the login screen background. To change the Apple logo follow the above steps same in the Login Logo Tab and add the image and click Set new Login Logo.
To remove the the changed background image and restore back to defaults just go back to the change image/logo tab and remove the changed image. This will revert the settings back to defaults.