You can find documentation for docerator.py at http://code.google.com/p/docerator/ . docerator.py needs to be in the same directory as makeicns to work. makeicns uses the IconFamily library by Troy Stephens ( http://iconfamily.sourceforge.net/ ). Instead of using the commandline script, you can also use the GUI Docerator.app. Docerator.app was written by Sveinbjorn Thordarson.