As an aside: The public domain NASA nebula background is now treated as a JGame sprite.
This will make it pretty easy to add Amiga-style screen scrolling effects, as well as tying Bobs (high-level emulated Blitter Objects) to a screen while it is scrolled around.
P.S. I'll likely add (Java Swing-based) 'tabbed' editing soon. I'll also keep the current drop-down menu for selecting the program from the bank. Eventually importable and exportable directly to/from AMOS .abk.