anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "icewm";
  -  version = "2.9.4";
  +  version = "2.9.6";
   
     src = fetchFromGitHub {
  -    owner  = "ice-wm";
  +    owner = "ice-wm";
       repo = pname;
       rev = version;
  -    hash = "sha256-ne2lqo9CAhGgC8dd9R03zhFXy9nPBQR0NcfAY0DeVj4=";
  +    hash = "sha256-qC8gEVJ/cmsEbF8jMzv7zyvVcjlbXhgHU3ixe7RLcnA=";
     };
   
     nativeBuildInputs = [
  
positive.code:       system. Application windows can be managed by keyboard and mouse. Windows
        can be iconified to the taskbar, to the tray, to the desktop or be made
        hidden. They are controllable by a quick switch window (Alt+Tab) and in a
        window list. A handful of configurable focus models are
        menu-selectable. Setups with multiple monitors are supported by RandR and
        Xinerama. IceWM is very configurable, themeable and well documented. It
        includes an optional external background wallpaper manager with
        transparency support, a simple session manager and a system tray.
      '';
      license = licenses.lgpl2Only;
      maintainers = [ maintainers.AndersonTorres ];
  
negative.code:     perl
      pkg-config
    ];
  
    buildInputs = [
      expat
      fontconfig
  