The Total Gallery is an attempt to implement the infinite monkey theorem by creating images instead of text. The program uses a pseudorandom number generator to decide how an image is created. A width and height are chosen, a base is chosen to initially fill the image, then the program can choose to draw a random number of primitives and apply effects to the image. This can be seen as giving the monkey MS Paint instead of a typewriter.
The Image generation settings let you choose which bases, primitives, and effects will be used to generate images. You can also choose from some presets which will give some interesting results.