The form control contains all other user interface objects for a specific display type. The form control itself is never presented on the display as it is just a container for the other user interface controls.
The definition of a form must have a unique name so the terminal can find the form and all its sub-objects when the user interface is created at boot time.
The form control has a sub-element called <controls> that is used for defining all the controls that can be presented on the display.
The hierarchy of the user interface where the form only contains panels and the panels contain all the user controls (buttons, labels, etc.) implies that the form's list of controls only contains the panel definitions.
