Color Wheel - Lesson Version © 1978 Bally Mfg. Co..
The color wheel helps you to select colors and their numbers. Moving the number 1 hand control left and right selects the color. Moving it forward and backward selects the intensity. Pulling the trigger gives you a printout on the screen that shows that particular color number (0 to 31), color intensity (0 to 7) and the computer number (0 to 255). These numbers refer to the background color only. The foreground color is adjusted automatically so that you can read the numbers.
Bally BASIC Manual, Pg. 97.
Astro BASIC Manual, Pg. 65.
Programmer: Dick Ainsworth