The tool that appears on the following page uses 10,000 individual table cells with a simple colour animation completely controlled by CSS. With 10,000 elements to manipulate, things work better if you move the mouse slowly and allow the browser to keep up with you.
If you are using a hand-held device such as a tablet or smart-phone or some other low-powered device I strongly suggest you DO NOT OPEN THE DRAWING TOOL.
The drawing and manipulation of 10,000 squares makes the page fairly processor intensive and may cause your device to crash.