There are a number of files in Android devices that control a large number of parameters. Perhaps the most well known of which is the build.prop. Inside the build.prop, you can find a number of variables that directly impact device functionality. From there, you can tweak all kinds of things, and even change what the software thinks is the model number of your device. For many TouchWiz devices, there is a similar file called CSC.
XDA Senior Member garyd9 has begun going through the file to figure out what it does, as well as what it controls on the AT&T Galaxy Note II. As each file has a lot of carrier-specific info, much of it may not be compatible with the other variants.
So far there aren’t very many useful discoveries. It was found that if CscFeature_Email_UseFixedBgColorAsWhite is changed to false, the Email app will appear inverted. It was also found that deleting some lines will cause things to break. For the most part, many of the lines can be altered or deleted without much of a consequence. However, given how many build.prop tweaks there are, AT&T Galaxy Note II users may be finding some CSC tweaks in the near future.