Each small square in the drawing area represents one point (a pixel) in the block. Draw with the mouse. The left and right mouse buttons paint with the two currently selected colors. Use the drawing tool icons to flip or rotate the image, to shift the image one way or another, and to change the color of all adjacent pixels. Also use the icons to select tools for drawing: - Points - Ink pen - Lines - Circles - Disks - Rectangles - Filled rectangles