ShowPlay Reference Manual, Chapter 3 (ControlVariables): sbackcolor
This can be a named color (white, black, red, green, blue, orange, purple, yellow, gray, cyan) or a number explicitly specifying an RGB value. The number is a 32-bit integer specifying red, green, and blue values (0-255) in the format 0RRGGBBh (note the H at the end of a number means hexadecimal; this is useful for RGB values.)
Important: Because SBACKCOLOR is a string variable any value assigned to SBACKCOLOR must be placed in quotes (' or “), whether it is a color name or a RGB number.
See Also:
CIGAL Home,
CIGAL Manual,
ShowPlay Home,
ShowPlay Manual,
InputParameters List,
Manual Help