PROJECT REFERENCE
GRAPHICS TRAP: COLOR NUMBER VS COLOR SOURCE

One of the major bugs found in the first generated demo was code such as:

  DRAW 6,...
  CIRCLE 4,...
  CHAR 6,...

The generator was treating the first graphics argument as though it were a
Commodore color number.

In high-resolution GRAPHIC 1 use, the drawing argument is a graphics color SOURCE.
The project primarily uses:

  0 = background / erase source
  1 = foreground / draw source

Actual foreground color is changed separately with COLOR.

Pattern:

  COLOR 1,6
  DRAW 1,10,10 TO 200,100

Erase pattern:

  DRAW 0,10,10 TO 200,100

This single misunderstanding can make an otherwise impressive generated listing
fail everywhere at once.