prefab: Environ - environment for ITV toolkit
to provide a graphics framework for a collection of items
prefab := load Prefab Prefab->PATH;
screen: ref Draw->Screen;
style: ref Style;
type collects the
types necessary to specify how and where to draw
upon which items will be displayed.
for items in an environment.
To draw various items in different fonts or colors,
the application should associate different
objects with the various.
(But see also the