-d, --debug                Debug level, add more to increase level
  -h HEIGHT                  Height of window
  -w WIDTH                   Width of window
  -x X                       X position of window
  -y Y                       Y position of window
      --display=DISPLAY      X display to use
      --no-xshm              Don't use X shared memory extension
  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Print program version