anchor.diff:  
     gruvbox = buildVimPluginFrom2Nix {
       pname = "gruvbox";
  -    version = "2018-02-25";
  +    version = "2020-02-23";
       src = fetchFromGitHub {
         owner = "morhetz";
         repo = "gruvbox";
  -      rev = "cb4e7a5643f7d2dd40e694bcbd28c4b89b185e86";
  -      sha256 = "12qkq1x96bm1cmqfg6sb8jxpl2b6gwvhc5qn3gva6vl4nx3ianqi";
  +      rev = "040138616bec342d5ea94d4db296f8ddca17007a";
  +      sha256 = "0qk2mqs04qlxkc1ldgjbiv1yisi2xl2b8svmjz0hdp9y2l5vfccw";
       };
     };
   
  
positive.code: 
    awesome-vim-colorschemes = buildVimPluginFrom2Nix {
      pname = "awesome-vim-colorschemes";
      version = "2019-11-23";
      src = fetchFromGitHub {
        owner = "rafi";
        repo = "awesome-vim-colorschemes";
        rev = "b5037cbf87ee4b0beed91adb33c339122e58326f";
        sha256 = "1yxjdb2cmha6vqhmsv8vy80whs201wwwx0xmyp76mz9zkcsyljak";
      };
    };
  
  
negative.code: 
    denite-nvim = buildVimPluginFrom2Nix {
      pname = "denite-nvim";
      version = "2020-02-23";
      src = fetchFromGitHub {
        owner = "Shougo";
        repo = "denite.nvim";
        rev = "e435b78c3fa878dba7bbb03ee7cd95df6ce7a836";
        sha256 = "10lz16l34ran96i5902hw9zw3qbfdz712bdjkdwvaijmgnj464s5";
      };
    };
  
  