This assignment features the Pen blocks. In particular your script will contain the following Pen blocks: clear, pen down, pen up, set pen color to ___, set pen size to ___, and change pen color by ____. The only one of these blocks not included in the demo is the last one and so you'll need to experiment with that one to figure out how it works.

Alter the sample project in the following ways:

1. Instead of drawing squares, draw triangles
2. Draw a total of nine triangles in a 3x3 array positioned evenly on the screen
3. Have each triangle be a different color, but use set pen color to ___ only once