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halo(6)			      XScreenSaver manual		       halo(6)

NAME
       halo - draw circular patterns

SYNOPSIS
       halo [--display host:display.screen] [--foreground color] [--background
       color]  [--window]  [--root]  [--window-id  number][--mono] [--install]
       [--visual visual] [--count int] [--delay	usecs] [--mode seuss | ramp  |
       random ]	[--animate] [--colors integer] [--fps]

DESCRIPTION
       The halo	program	draws cool patterns based on circles.

OPTIONS
       halo accepts the	following options:

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

       --root  Draw on the root	window.

       --window-id number
	       Draw on the specified window.

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

       --install
	       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.

       --count integer
	       How many	circles	to draw.  Default 0, meaning random.

       --mode seuss | ramp | random
	       In seuss	mode, alternating striped curves will be drawn.

	       In ramp mode, a color ramp will be drawn.

	       random means pick the mode randomly.

       --delay microseconds
	       How  much  of a delay should be introduced between steps	of the
	       animation.  Default 100000, or about 0.1	second.

       --colors	integer
	       How many	colors to use.	Default	100.

       --animate
	       If specified, then the centerpoints of the circles will	bounce
	       around.	Otherwise, the circles will be drawn once, erased, and
	       a new set of circles will be drawn.

       --fps   Display the current frame rate and CPU load.

ENVIRONMENT
       DISPLAY to get the default host and display number.

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

       XSCREENSAVER_WINDOW
	       The window ID to	use with --root.

SEE ALSO
       X(1), xscreensaver(1)

COPYRIGHT
       Copyright (C) 1993 by Jamie Zawinski.  Permission to use, copy, modify,
       distribute, and sell this software and its documentation	for  any  pur-
       pose  is	 hereby	granted	without	fee, provided that the above copyright
       notice appear in	all copies and that both  that	copyright  notice  and
       this  permission	 notice	appear in supporting documentation.  No	repre-
       sentations are made about the suitability of this software for any pur-
       pose.  It is provided "as is" without express or	implied	warranty.

AUTHOR
       Jamie Zawinski <jwz@jwz.org>, 6-jul-93.

X Version 11		      6.09 (07-Jun-2024)		       halo(6)

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