anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "venta";
  -  version = "2020-08-20";
  +  version = "0.6";
   
     src = fetchFromGitHub {
       owner = "darkomarko42";
       repo = pname;
  -    rev = "f9b7ea560def5c9d25a14015d265ba559d3501ca";
  -    sha256 = "13rdavspz1q3zk2h04jpd77hxdcifg42kd71qq13ryg4b5yzqqgb";
  +    rev = version;
  +    sha256 = "1fhiq1kji5qmwsh8335rzilvhs30g5jp126czf2rf532iba0ivd7";
     };
   
     buildInputs = [
  
positive.code: { lib, stdenv
  , fetchFromGitHub
  , gdk-pixbuf
  , gtk-engine-murrine
  
negative.code:     runHook preInstall
      mkdir -p $out/share/themes
      cp -a Venta* $out/share/themes
      runHook postInstall
    '';
  
  