In an innovative discovery that defied centuries of colour theory, scientists revealed that purple isn’t a real colour at all—but a clever illusion created by the brain. According to new research, ...

Or, hide colorful eggs and compete to finish the rainbow according to “ROYGBIV,” the acronym for red, orange, yellow, green, blue, indigo and violet. You don’t need a goose to find a golden egg.

Most people can't answer this science trivia ... can you? How well do you know science trivia? Even if it’s been years since ...

HSV and HSL conversion, rainbow() module for coloring multiple objects. The recolor() and color_this() modules allow you to change the color of previously colored attachable objects.