.B penrose
[\-display \fIhost:display.screen\fP] [\-foreground \fIcolor\fP] [\-background \fIcolor\fP] [\-window] [\-root] [\-mono] [\-install] [\-visual \fIvisual\fP] [\-ncolors \fIinteger\fP] [\-delay \fImicroseconds\fP] [\-size \fIinteger\fP] [\-ammann] [\-no\-ammann]
+[\-fps]
.SH DESCRIPTION
The \fIpenrose\fP program draws quasiperiodic tilings.
horizontally or vertically or forced rule choice has failed 100
times due to areas about to become enclosed.
+Although quasiperiodic tilings are produced, the tiles themselves are
+not penrose tiles (darts and kites). In contrast to penrose tiles,
+these tiles can be arranged to form a periodic tiling.
+
.SH OPTIONS
.I penrose
accepts the following options:
How big the tiles should be. Default 40 pixels.
.TP 8
-.B \-ammann \fIinteger\fP
+.B \-delay \fImilliseconds\fP
+How long (in 1/1,000,000'ths of a second) to wait between drawing each
+tile. Default 10,000 or .01 seconds.
+
+.TP 8
+.B \-ammann
.TP 8
-.B \-no\-ammann \fIinteger\fP
+.B \-no\-ammann
Whether Ammann lines should be added.
+.TP 8
+.B \-fps
+Display the current frame rate and CPU load.
.SH ENVIRONMENT
.PP
.TP 8