NAME

        icewmbg - a background settings manager for the IceWM window manager

SYNOPSIS

       icewmbg [OPTIONS]

DESCRIPTION

       icewmbg can assign a colour or image to the X11 desktop background.  Many image formats are supported.
       Each icewm(1) work space can have its own background.

       When the background image has changed then icewmbg can be notified to update the background.  When
       switching work spaces it checks the image file modification time.  If the file has changed then it
       reloads the background image from file.

       icewmbg supports semi-transparency.  Semitransparent background images and colours can be configured.  If
       these are not specified then the default background is used.

       It uses XINERAMA and RANDR to support backgrounds on all connected monitors.  When monitors
       appear/disappear or change their resolution icewmbg will adjust.  It supports an option for one large
       background over all monitors.

       It should be started before icewm(1), preferably by the icewm-session(1) program.

OPTIONS

   SPECIFIC OPTIONS
       Where multiple values can be given for images or colours they are separated by commas.  When FILE is a
       directory then all images from that directory are used in sorted order.

       -p, --replace
           Replace an existing icewmbg. If there is a running icewmbg it is instructed to quit.  The new icewmbg
           will take over.

       -q, --quit
           Tell the running icewmbg to quit. This option is used by icewm-session(1) when icewm(1) exits.

       -r, --restart
           Tell the running icewmbg to restart itself.  This is useful when a background file or directory has
           changed or when settings in preferences files have changed.

       -c, --config=FILE
           Load preferences from FILE.

       -t, --theme=THEME
           Load the theme named THEME.

       -i, --image=FILE[,FILE]*
           Load background images from each FILE.  This overrules the "DesktopBackgroundImage" preference.

       -k, --color=COLOR[,COLOR]*
           Use background colours from each COLOR.  This overrules the "DesktopBackgroundColor" preference.

       -s, --semis=FILE[,FILE]*
           Load transparency images from each FILE.  This overrules the "DesktopTransparencyImage" preference.

       -x, --trans=NAME[,NAME]
           Use transparency colours for each NAME.  This overrules the "DesktopTransparencyColor" preference.

       -e, --center={0|1}
           Disable/Enable centring background.  This overrules the "DesktopBackgroundCenter" preference.

       -a, --scaled={0|1}
           Disable/Enable scaling background.  This overrules the "DesktopBackgroundScaled" preference.

       -m, --multi={0|1}
           Disable/Enable multi-head background.  This overrules the "DesktopBackgroundMultihead" preference.

       --display=DISPLAY
           Use DISPLAY to connect to the X server.  If this option is missing then DISPLAY is read from the
           environment variable "DISPLAY".

       --sync
           Use a slower synchronous mode communication with X11 server.

   GENERAL OPTIONS
       -h, --help
           Print a brief usage statement to stdout and exit.

       -V, --version
           Print the program version to stdout and exit.

       -C, --copying
           Print copying permissions to stdout for the program and exit.

FILES

   PREFERENCES
       By default icewmbg will load the background settings from the icewm(1) preferences files (see
       icewm-preferences(5)).  The settings read are:

         DesktopBackgroundCenter    - Display desktop background centered
         DesktopBackgroundScaled    - Display desktop background scaled
         DesktopBackgroundColor     - Desktop background color(s)
         DesktopBackgroundImage     - Desktop background image(s)
         SupportSemitransparency    - Support for semitransparent terminals
         DesktopTransparencyColor   - Semitransparency background color(s)
         DesktopTransparencyImage   - Semitransparency background image(s)
         DesktopBackgroundMultihead - One background over all monitors

       First these settings are read from the preferences file.  Then the theme file from the current theme is
       read, which may overrule the preferences settings.  Lastly the prefoverride file is read, which overrides
       again.  Therefore, if you want to allow the theme to set the background use preferences for your
       settings, otherwise use prefoverride.  See icewm-prefoverride(5).

   SCALING
       Often a background image has a different width or height than the screen.  The settings can specify to
       centre ("DesktopBackgroundCenter") or scale (DesktopBackgroundScaled) an image.  Either option is either
       0 (disabled) or 1 (enabled).  What happens for their combination is given by the following table:

         center:0 scaled:0 = the background is replicated in both directions
         center:1 scaled:0 = the background is centered, but not scaled
         center:1 scaled:1 = fill one dimension and keep aspect the ratio
         center:0 scaled:1 = fill both dimensions and keep aspect the ratio

SEE ALSO

       icewm(1), icewm-preferences(5), icewm-prefoverride(5), wmsetbg(1), xsetbg(1), xv(1).

BUGS

       icewmbg had no known bugs at the time of release.  Please report bugs for current versions to the source
       code repository at <https://github.com/bbidulock/icewm/issues>.

AUTHOR

       Brian Bidulock <mailto:bidulock@openss7.org>.

       See --copying for full copyright notice and copying permissions.

LICENSE

       IceWM is licensed under the GNU Library General Public License.  See the COPYING file in the distribution
       or use the --copying flag to display copying permissions.