A2 comes with a thread-safe GUI and multimedia framework called Bluebottle. Its Window Manager allows concurrent drawing to
many possibly semi transparent windows that can be freely positioned. The window
manager supports XML definable styles as well as style plug-ins.
The pictures above show desktop screenshot of different styles
The window manager defines a coordinate space in which the windows are
positioned. One or more coordinate space observer (called "view") can
be installed. Each "view" represents one display adapter, VNC server
or other coordinate space observing application such as a screen shot utility or
"movie recorder". The views can be freely positioned.