anchor.diff:  , itstool
   , libgdata
   , libchamplain
  +, libsecret
   , gsettings-desktop-schemas
   , python3
   }:
  
positive.code:     gnome3.adwaita-icon-theme
      libgdata
      libchamplain
    ];
  
    postPatch = ''
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "shotwell";
    version = "0.31.3";
  
    src = fetchurl {
      url = "mirror://gnome/sources/${pname}/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
      sha256 = "1wkahbnnfxmi1jc5zmm3h761nrnkdks8lk0rj38bfkwg90h6zqwd";
    };
  
    nativeBuildInputs = [
  