Using Ksmrg's suggested colors for accessibility, a drawing of a function of 4 colored shapes { red square, red triangle, yellow rectangle, green polygon } mapped to 5 colors { red, blue, green, violet, yellow
This file was derived from: Function color example 3.gif:
Function_color_example_3.gif: Wvbailey.The original uploader was Wvbailey at English Wikipedia.

derivative work: Zerodamage