Matrix wallpaper in canvas
Recreating a wallpaper I had on my windows xp machine many years ago.
It takes a bunch of characters that look like the ones used in The Matrix (such as
It creates 20 rows, and creates an object for each row (with a randomly selected character).
They start at the top of the canvas, then every ~100ms it repaints them slightly lower in position (with some transparency so you get the fading effect).