Pressing the green flag will generate a random drawing. MAKE SURE TURBO MODE IS ON. Pressing "r" will generate another random drawing. Pressing "l" and clicking in a spot on the screen will make the code draw a light source in that spot. Once you click the green flag, it will ask you which color you want. This is the range of colors it will draw for your drawing. For example, if you choose white, the colors will range from white to black. If you choose blue, colors will range from blue to black. If you misspell a word or if you enter a something that isn't a given color, then it will either do the last color you chose or, if you haven't done anything yet, blue.