[Admins]

Those functions are highlighted in the RC because I have copied & modified the syntax highlight definitions from Java, you can modify the definition, it's put somewhere in the user directory.
Graal uses a different, more dynamic way of classes which you can join and leave at any time. I am not sure if those two ways can easily be combined, although it could be interesting to add more functionality if it's helping for coding.

In the next Graal version the support for using classes on client-side is much better, so you can use onCreated() (plus caching of classes and when you call a function of an object which is waiting for classes to be downloaded then it is suspending the script until the classes have been downloaded)