Usage:
  xwinmosaic [OPTION...]  - show X11 windows as colour mosaic

Help Options:
  -h, --help                   Show help options
  --help-all                   Show all help options
  --help-gtk                   Show GTK+ Options

Application Options:
  -r, --read-stdin             Read items from stdin (and print selected item to stdout)
  -p, --permissive             Lets search entry text to be used as individual item.
  -t, --format                 Read items from stdin in next format (comma separated):
                                    <desktop_num>, <box_color>, <icon>, <label>, <opt_name>.
                               Icon can be path to png file or icon name from theme.
                               Any option, except <label> can be skipped
                               <icon> should be a path to png file or icon name from theme
                               Any positive value of <desktop_num> allowed.
                               <box_color> should be in #nnnnnn format, otherwise it will be skipped.
  -V, --vim-mode               Turn on vim-like navigation (hjkl, search on /)
  -C, --no-colors              Turn off box colorizing
  -I, --no-icons               Turn off showing icons
  -D, --no-desktops            Turn off showing desktop number
  -T, --no-titles              Turn off showing titles
  -S, --screenshot             Get screenshot and set it as a background (for WMs that do not support XShape)
  -P, --at-pointer             Place center of mosaic at pointer position.
  -s, --selected=<N>           Select box number N at spawn. (default: 0)
  -W, --box-width=<int>        Width of the boxes (default: 200)
  -H, --box-height=<int>       Height of the boxes (default: 40)
  -i, --icon-size=<int>        Size of window icons (default: 16)
  -f, --font="font [size]"     Which font to use for displaying widgets. (default: "Sans 10")
  -o, --hue-offset=<int>       Set color hue offset (from 0 to 255)
  -F, --color-file=<file>      Pick colors from file
  --display=DISPLAY            X display to use

cd xwinmosaic
mkdir build
cd build
cmake ..         # or cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr ..
make
./src/xwinmosaic # or sudo make install, if you trust me. :)

[colors]
# Use xprop to determine window class
WindowClass1 = #112233
WindowClass2 = #445566
# For other windows to use. You can omit that line and it will use standard colorizing scheme.
fallback = #778899; #AABBCC; #DDEEFF