DOKK / manpages / debian 10 / x11-apps / xeyes.1.en
XEYES(1) General Commands Manual XEYES(1)

xeyes - a follow the mouse X demo

xeyes [-option ...]

Xeyes watches what you do and reports to the Boss.

choose a different color for the pupil of the eyes.
choose a different color for the background.
choose a different color for the outline of the eyes.
choose a different color for the center of the eyes.
selects an appropriate level of backing store.
define the initial window geometry; see X(7).
specify the display to use; see X(7).
choose a different color for the window border.
choose a different width for the window border.
uses the SHAPE extension to shape the window. This is the default.
+shape
disables use of the SHAPE extension to shape the window.
uses Xrender to draw anti-aliased eyes. This is the default if xeyes has been compiled with Xrender support.
+render
disables Xrender and draws traditional eyes.
uses an alternative mapping, as if the eyes were set back from the screen, thus following the mouse more precisely.

X(7), X Toolkit documentation
See X(7) for a full statement of rights and permissions.

Keith Packard, MIT X Consortium
Copied from the NeWS version written (apparently) by Jeremy Huxtable as seen at SIGGRAPH '88

xeyes 1.1.2 X Version 11