Like it says, white snowflakes tumblin' on a black screen. This is one of the classics, ported to Mac OS X. I like the varying wind and drift effects. And there are only two "imagineered" snowflakes with octal symmetry - the majority are hexagonal. There's a desktop variation - just a moment, I'll see what it does. Ok, same thing, except transparent background shows your desktop with white snowflakes. The one missing feature of the original - snow doesn't pile up at the bottom of the screen, or on the top edges of windows. It just falls through. Nice and old school, though.