Brewster Kaleidoscopic Screensaver - Version 2.0b Brewster Kaleidoscopic Screensaver is a spectacular screensaver that simulates a kaleidoscope in real time. It can create an infinite variety of patterns, from delicate snowflake-like arrangements to brain-burning psychedelic extravaganzas. You can design your own patterns, or let the computer do all the work. More patterns are also available for downloading from the Brewster home page.