Descriptions:

This time it is different from hello purr and more advanced. So there are three choices of colors; red, blue and green. When you click them you can draw on the canvas. when you click on the canvas, depending on what color you chose it will come out as a dot. When you click on the canvas and drag then it would draw a straight line. I used button click, that’s an even so when you click on it you basically have chosen that option.

Screenshots: