Man page 1 : xeyes

xeyes - a follow the mouse X demo

xeyes [-option ...]

Xeyeswatches what you do and reports to the Boss.

-fg \fIforeground color\fB
        choose a different color for the pupil of the eyes.

-bg \fIbackground color\fB
        choose a different color for the background.

-outline \fIoutline color\fB
        choose a different color for the outline of the eyes.

-center \fIcenter color\fB
        choose a different color for the center of the eyes.

-backing \fI{ WhenMapped Always NotUseful }\fB
        selects an appropriate level of backing store.

-geometry \fIgeometry\fB
        define the initial window geometry; see X(7).

-display \fIdisplay\fB
        specify the display to use; see X(7).

-bd \fIborder color\fB
        choose a different color for the window border.

-bw \fIborder width\fB
        choose a different width for the window border.

-shape

        uses the SHAPE extension to shape the window. This is the default.

\+shape

        disables use of the SHAPE extension to shape the window.

-render

        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.

-distance

        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