.SH NAME
paint \- create image files by drawing with a mouse or other pointing device
.SH SYNOPSIS
-.B paint [file]
+.B paint
+[
+.I file
+]
.SH DESCRIPTION
.I Paint
-provides a window upon which can be drawn lines by moving the cursor while
-holding down mouse button 1 or its equivalent.
+displays a canvas upon which can be drawn lines using the mouse holding
+down buttons 1 or 2 for foreground or background color. The canvas
+may be moved with button 3. Colors and brush sizes may be selected by
+clicking on the palette at the bottom of the screen with buttons 1 or 2.
.PP
-A number of keyboard commands are recognized:
-.TP
-.B b
-Set the brush size to an ellipse with a horizontal semiaxis of
-.I n
-and a vertical semiaxis of
-.I n
-(see
-.IR graphics (2)).
-Type a number,
-.I n,
-in the pop-up box and hit enter.
-.TP
-.B c
-Clear the screen. Any unsaved work will be lost.
-.TP
-.B o
-Open a bitmap image file for editing.
-.TP
-.B s
-Save the current screen as a bitmap image. A pop-up box appears
-suggesting a default filename of
-.I out.bit.
-Hit enter to accept the default, or backspace over the suggested name and
-type an alternative path and filename. If the path is omitted, a file will be
-created in the current directory.
+If the optional
+.I file
+argument is specified, then it is read and used as the canvas.
+.I Paint
+only recognizes Plan 9 bitmap format (see
+.IR image (6)).
+.PP
+A number of immediate keyboard commands are recognized:
+.TP
+.B u
+Undos the previous action.
+.TP
+.B f
+Fills the canvas with the background color.
+.TP
+.B 1-9
+Select brush size.
+.TP
+.B +
+Doubles magnification.
+.TP
+.B -
+Halves magnification.
+.TP
+.B esc
+Centers the canvas and resets magnification.
+.PP
+Hitting any other key on the keyboard shows a command prompt
+where the following commands may be entered:
+.TP
+.BI r file
+Reads the canvas from
+.I file.
+.TP
+.BI w file
+Writes the canvas to
+.I file.
+.TP
+.BI < command
+Executes
+.I command
+and reads the canvas from its standard output.
+.TP
+.BI > command
+Executes
+.I command
+and writes the canvas to its standard input.
+.TP
+.BI | command
+Transforms the canvas by piping it thru
+.I command.
.TP
.B q
-Quit.
+Quits the program.
.SH SOURCE
.B /sys/src/cmd/paint.c
.SH "SEE ALSO"
-.IR graphics (2),
+.IR resize (1),
+.IR resample (1),
+.IR rotate (1),
+.IR crop (1),
+.IR jpg (1),
+.IR page (1),
.IR image (6)
-.SH BUGS
-.I Paint
-offers a bare minimum of drawing functionality. Popular features such as
-.B undo
-have not yet been implemented.