moire(1): draw circular interference patterns

NAME

-window: Draw on a newly-created window. This is the default.
-root: Draw on the root 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.
-delay seconds: How long to wait before starting over. Default 5 seconds.
-random boolean: Whether to ignore the foreground/background colors, and pick them randomly instead.
-offset integer: The maximum random radius increment to use.
-ncolors integer: How many colors should be allocated in the color ramp (note that this value interacts with offset.)

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.