The bar controls package consists of linear controls. These controls often consist of title bars, tool bars, status bars etc.

The containers package hold components that contain UIComponents. There are various layout algorithms that each component offers in this package.

The controls package contains gesture specific UIComponents that have a purpose .

The core package contains low level classes that are mainly abstract.

The events package containes core events used in the framework. Most component event classes will subclass the WorkSpaceEvent class.

The managers package contains mainly singleton class managers that perform specific operations on UIComponents.

The skins package holds core skin classes used in the framework.