Confused about the OpenGL changes in 2.0

Under Changes/The big stuff, I read this:

• OpenGL 2 – a new version of the OpenGL library has been implemented, and the old one has been removed. The new library is based on Andres Colubri's Android work (and his experiences developing the GLGraphics library). All the great things from Android have now been back-ported to the desktop version of Processing, so we have a super fast OpenGL library.

• OpenGL is now part of core 

 

Then I look at the reference and I'm lost: where do I find documentation about this "OpenGL library"? No such thing is listed among the core libraries in the Libraries reference