This is just a jar that packages up the labels for making the engine that bit better.
Because it rarely changes, it makes no sense to release it each time we release the
main Maui artifact, or to force people to download it again and again.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window maui-data-1.1.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
