Time wasting site...help?

I'm looking for a time-wasting site where the mouse controls beautiful fluid ribbons of colors across the screen. That's the only way I can describe it. It has a black screen that stays in motion and as you move the mouse, a gorgeous stream of fluid jewel-toned color drags and you can make it calm or chaotic based on how you move the mouse. It also released different size "ink dots" like the pen was leaking.

...If I remember correctly, I believe you also take screenshots to save the images.

Please help me figure out what this site is called. It is such beautiful time waster! lol (and almost therapeutic.)

Thanks, Pam