anchor.diff:  
   stdenv.mkDerivation rec {
     name = "aseprite-${version}";
  -  version = if unfree then "1.2-beta12" else "1.1.7";
  +  version = if unfree then "1.2.2" else "1.1.7";
   
     src = fetchFromGitHub {
       owner = "aseprite";
  
positive.code:     rev = "v${version}";
      fetchSubmodules = true;
      sha256 = if unfree
        then "1zgsr03d4vwdj2qyiwfwfqsbqngp85n13i3xwbkfkbja036c5yhc"
        else "0gd49lns2bpzbkwax5jf9x1xmg1j8ij997kcxr2596cwiswnw4di";
    };
  
  
negative.code:     curl freetype giflib libjpeg libpng libwebp pixman tinyxml zlib
      libX11 libXext libXcursor libXxf86vm
    ] ++ lib.optionals unfree [ cmark ];
  
    postPatch = ''
      sed -i src/config.h -e "s-\\(#define VERSION\\) .*-\\1 \"$version\"-"
    '';
  
    cmakeFlags = [
      "-DENABLE_UPDATER=OFF"
  