anchor.diff:  in
   stdenv.mkDerivation rec {
     pname = "palemoon";
  -  version = "29.2.0";
  +  version = "29.2.1";
   
     src = fetchFromGitHub {
       githubBase = "repo.palemoon.org";
       owner = "MoonchildProductions";
       repo = "Pale-Moon";
       rev = "${version}_Release";
  -    sha256 = "0pa9j41bbfarwi60a6hxi5vpn52mwgr4p05l98acv4fcs1ccb427";
  +    sha256 = "0djjl79jrnny16p32db5w7pwwv0a24dc8mg1s1bnavhlvmmk52vq";
       fetchSubmodules = true;
     };
   
  
positive.code:     ./mach install
  
      # Fix missing icon due to wrong WMClass
      # TODO report upstream
      substituteInPlace ./palemoon/branding/official/palemoon.desktop \
        --replace 'StartupWMClass="pale moon"' 'StartupWMClass=Pale moon'
      desktop-file-install --dir=$out/share/applications \
  
negative.code: { stdenv
  , lib
  , fetchFromGitHub
  