Makes the admin area fixed-width instead of elastic. Easy to customize width.
You can easily adjust the width of your admin area, its alignment, and the page background color that appears to the left and right of it. Inside the plug-in folder is a file named wp-admin.css, simply open this file in a text editor, and make your changes. All the code has comments that explain the specific functions—don't be intimidated, just experiment, and if you go too far you can always re-upload the original file.