anchor.diff:  
     sonokai = buildVimPluginFrom2Nix {
       pname = "sonokai";
  -    version = "2021-05-19";
  +    version = "2021-05-22";
       src = fetchFromGitHub {
         owner = "sainnhe";
         repo = "sonokai";
  -      rev = "2ab955b30545b7074aa28daae73bbc7050fc55f0";
  -      sha256 = "0ya3xa9fq6dn2s77qg2snx68aigl9px3flaawpsa0nf8np3jl6kz";
  +      rev = "53e874723f4564a12ca0af30541dca4a9d315556";
  +      sha256 = "1wbwpawmlc25wdnmhidrj9k591zqc2srszh20xv60p0dg2aylmx5";
       };
       meta.homepage = "https://github.com/sainnhe/sonokai/";
     };
  
positive.code:       owner = "flazz";
        repo = "vim-colorschemes";
        rev = "fd8f122cef604330c96a6a6e434682dbdfb878c9";
        sha256 = "1cg8q7w0vgl73aw1b9zz0zh5vw5d2pm8pm54fhfzva4azg56f416";
      };
      meta.homepage = "https://github.com/flazz/vim-colorschemes/";
    };
  
negative.code: 
    chadtree = buildVimPluginFrom2Nix {
      pname = "chadtree";
      version = "2021-05-22";
      src = fetchFromGitHub {
        owner = "ms-jpq";
        repo = "chadtree";
        rev = "dd54a707f372bc8f631d7c70f70f1b55a0f56926";
        sha256 = "16sbhn3711hqwv3qykg5lbf09fl6pn58aclsx5r3nnifdc531sc6";
      };
      meta.homepage = "https://github.com/ms-jpq/chadtree/";
    };
  