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deco - Man Page

draw tacky 70s basement wall panelling


deco [--display host:display.screen] [--foreground color] [--background color] [--window] [--root] [--window-id number] [--mono] [--install] [--visual visual] [--delay seconds] [--max-depth int] [--min-width int] [--min-height int] [--line-width yIint] [--smooth-colors] [--golden-ratio] [--mondrian] [--fps]


The deco program subdivides and colors rectangles randomly. It looks kind of like Brady-Bunch-era rec-room wall paneling. (Raven says: "This screensaver is ugly enough to peel paint.") Can also produce more aesthetically pleasing displays via options.


deco accepts the following options:


Draw on a newly-created window.  This is the default.


Draw on the root window.

--window-id number

Draw on the specified window.


If on a color display, pretend we're on a monochrome display.


Install a private colormap for the window.

--visual visual

Specify which visual to use.  Legal values are the name of a visual class, or the id number (decimal or hex) of a specific visual.

--delay seconds

How long to wait before starting over.  Default 5 seconds.

--max-depth integer

How deep to subdivide.  Default 12.

--min-width integer
--min-height integer

The size of the smallest rectangle to draw.  Default 20x20.

--line-width integer

Width of lines drawn between rectangles. Default zero (minimal width).


Whether to use a smooth color palette instead of a random one. Less jarring. Default False.


Whether to subdivide rectangles using the golden ratio instead of 1/2. This ratio is supposed to be more aesthetically pleasing. Default false.


Whether to imitiate style of some famous paintings by Piet Mondrian. Overrides line-width and colormap options. Default false.


Display the current frame rate and CPU load.



to get the default host and display number.


to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.


The window ID to use with --root.

See Also

X(1), xscreensaver(1)


Jamie Zawinski <jwz@jwz.org>, 26-Apr-97, based on code by Michael D. Bayne <mdb@go2net.com>. Golden ratio and  Mondrian settings by Lars Huttar.


6.09-1.fc41 (11-Jun-2024) X Version 11 XScreenSaver manual