Color addition and subtraction (Colors).
Description: Physics application dealing with the addition and subtraction of colors. The program generates simple exercises,
where the user has to determine the resulting color on a sheet of white paper, illuminated by 2 bulbs of different color resp. the color of the light
transmitted by a given color filter, illuminated by a given color bulb. Beside the colors, the user has to (optionally) enter the equation of the color
addition or subtraction process. In order to learn about and understand the physics of colors, the application provides a learning mode, where the
color addition and subtraction examples are displayed, solution included. Basics of the physics of light and application help text available from the
application's menu bar.
Free Pascal features: Using canvas to draw lines, rectangles and ellipses. Arrays of records (classic Pascal).