Click once on the image to activate the Colorizer. Click on the color of your choice, on the pallette, to pick up the color.
Click on the panel that you want to color. Should you want to start over, click on "Clear".

To send the image, in Windows, hit Alt + Print Screen, to copy image to clipboard. Use any image editing software, including "Paint", open a "new" image
and "paste" it into the program. Save as an image file, such as gif or jpg, and attach it to an e-mail.