diff --git a/ui (gen4)/features/all.js b/ui (gen4)/features/all.js
index 243d1f78..55ef2c1f 100755
--- a/ui (gen4)/features/all.js	
+++ b/ui (gen4)/features/all.js	
@@ -34,7 +34,7 @@ require('features/ui-ribbons')
 // XXX
 require('features/ui-partial-ribbons-precache')
 require('features/ui-partial-ribbons-2')
-require('features/ui-partial-ribbons-vdom')
+//require('features/ui-partial-ribbons-vdom')
 require('features/ui-single-image')
 require('features/ui-chrome')
 require('features/ui-progress')
diff --git a/ui (gen4)/package-lock.json b/ui (gen4)/package-lock.json
index 0ed17830..7b5a28b6 100755
--- a/ui (gen4)/package-lock.json	
+++ b/ui (gen4)/package-lock.json	
@@ -1,6 +1,6 @@
 {
   "name": "ImageGrid.Viewer.g4",
-  "version": "4.0.0-a",
+  "version": "4.0.0a",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -52,7 +52,9 @@
     "asap": {
       "version": "2.0.6",
       "resolved": "https://registry.npmjs.org/asap/-/asap-2.0.6.tgz",
-      "integrity": "sha1-5QNHYR1+aQlDIIu9r+vLwvuGbUY="
+      "integrity": "sha1-5QNHYR1+aQlDIIu9r+vLwvuGbUY=",
+      "dev": true,
+      "optional": true
     },
     "asn1": {
       "version": "0.2.4",
@@ -216,7 +218,8 @@
     "commander": {
       "version": "2.20.3",
       "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
-      "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ=="
+      "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
+      "optional": true
     },
     "concat-map": {
       "version": "0.0.1",
@@ -244,17 +247,6 @@
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
-    "create-react-class": {
-      "version": "15.6.2",
-      "resolved": "https://registry.npmjs.org/create-react-class/-/create-react-class-15.6.2.tgz",
-      "integrity": "sha1-zx7RXxKq1/FO9fLf4F5sQvke8Co=",
-      "optional": true,
-      "requires": {
-        "fbjs": "^0.8.9",
-        "loose-envify": "^1.3.1",
-        "object-assign": "^4.1.1"
-      }
-    },
     "currently-unhandled": {
       "version": "0.4.1",
       "resolved": "https://registry.npmjs.org/currently-unhandled/-/currently-unhandled-0.4.1.tgz",
@@ -359,14 +351,6 @@
         }
       }
     },
-    "encoding": {
-      "version": "0.1.12",
-      "resolved": "https://registry.npmjs.org/encoding/-/encoding-0.1.12.tgz",
-      "integrity": "sha1-U4tm8+5izRq1HsMjgp0flIDHS+s=",
-      "requires": {
-        "iconv-lite": "~0.4.13"
-      }
-    },
     "end-of-stream": {
       "version": "1.4.4",
       "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.4.tgz",
@@ -461,27 +445,6 @@
       "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz",
       "integrity": "sha1-1RQsDK7msRifh9OnYREGT4bIu/I="
     },
-    "fbjs": {
-      "version": "0.8.16",
-      "resolved": "https://registry.npmjs.org/fbjs/-/fbjs-0.8.16.tgz",
-      "integrity": "sha1-XmdDL1UNxBtXK/VYR7ispk5TN9s=",
-      "requires": {
-        "core-js": "^1.0.0",
-        "isomorphic-fetch": "^2.1.1",
-        "loose-envify": "^1.0.0",
-        "object-assign": "^4.1.0",
-        "promise": "^7.1.1",
-        "setimmediate": "^1.0.5",
-        "ua-parser-js": "^0.7.9"
-      },
-      "dependencies": {
-        "core-js": {
-          "version": "1.2.7",
-          "resolved": "https://registry.npmjs.org/core-js/-/core-js-1.2.7.tgz",
-          "integrity": "sha1-ZSKUwUZR2yj6k70tX/KYOk8IxjY="
-        }
-      }
-    },
     "fd-slicer": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/fd-slicer/-/fd-slicer-1.0.1.tgz",
@@ -1148,11 +1111,6 @@
         "sshpk": "^1.7.0"
       }
     },
-    "iconv-lite": {
-      "version": "0.4.19",
-      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.19.tgz",
-      "integrity": "sha512-oTZqweIP51xaGPI4uPa56/Pri/480R+mo7SeU+YETByQNhDG55ycFyNLIgta9vXhILrxXDmF7ZGhqZIcuN0gJQ=="
-    },
     "ig-actions": {
       "version": "3.24.2",
       "resolved": "https://registry.npmjs.org/ig-actions/-/ig-actions-3.24.2.tgz",
@@ -1230,11 +1188,6 @@
         "number-is-nan": "^1.0.0"
       }
     },
-    "is-stream": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/is-stream/-/is-stream-1.1.0.tgz",
-      "integrity": "sha512-uQPm8kcs47jx38atAcWTVxyltQYoPT68y9aWYdV6yWXSyW8mzSat0TL6CiWdZeCdF3KrAvpVtnHbTv4RN+rqdQ=="
-    },
     "is-typedarray": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/is-typedarray/-/is-typedarray-1.0.0.tgz",
@@ -1250,25 +1203,11 @@
       "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
       "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE="
     },
-    "isomorphic-fetch": {
-      "version": "2.2.1",
-      "resolved": "https://registry.npmjs.org/isomorphic-fetch/-/isomorphic-fetch-2.2.1.tgz",
-      "integrity": "sha1-YRrhrPFPXoH3KVB0coGf6XM1WKk=",
-      "requires": {
-        "node-fetch": "^1.0.1",
-        "whatwg-fetch": ">=0.10.0"
-      }
-    },
     "isstream": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/isstream/-/isstream-0.1.2.tgz",
       "integrity": "sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo="
     },
-    "js-tokens": {
-      "version": "3.0.2",
-      "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-3.0.2.tgz",
-      "integrity": "sha1-mGbfOVECEw449/mWvOtlRDIJwls="
-    },
     "jsbn": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/jsbn/-/jsbn-0.1.1.tgz",
@@ -1337,14 +1276,6 @@
         "strip-bom": "^2.0.0"
       }
     },
-    "loose-envify": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/loose-envify/-/loose-envify-1.3.1.tgz",
-      "integrity": "sha1-0aitM/qc4OcT1l/dCsi3SNR4yEg=",
-      "requires": {
-        "js-tokens": "^3.0.0"
-      }
-    },
     "loud-rejection": {
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/loud-rejection/-/loud-rejection-1.6.0.tgz",
@@ -1481,15 +1412,6 @@
         "semver": "^5.4.1"
       }
     },
-    "node-fetch": {
-      "version": "1.7.3",
-      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-1.7.3.tgz",
-      "integrity": "sha512-NhZ4CsKx7cYm2vSrBAr2PvFOe6sWDf0UYLRqA6svUYg7+/TSfVAu49jYC4BvQ4Sms9SZgdqGBgroqfDhJdTyKQ==",
-      "requires": {
-        "encoding": "^0.1.11",
-        "is-stream": "^1.0.1"
-      }
-    },
     "noop-logger": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/noop-logger/-/noop-logger-0.1.1.tgz",
@@ -1574,11 +1496,6 @@
         "wrappy": "1"
       }
     },
-    "openseadragon": {
-      "version": "2.4.1",
-      "resolved": "https://registry.npmjs.org/openseadragon/-/openseadragon-2.4.1.tgz",
-      "integrity": "sha512-7fWUnCkGvWcnoRxqeXcg4bSLPApWbI0hHumEZF8K2pziMfPNjvvHL5XB4oQeT2XfrGKfaasVrPe2XqhAr5kogA=="
-    },
     "parse-json": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/parse-json/-/parse-json-2.2.0.tgz",
@@ -1651,12 +1568,6 @@
         "pinkie": "^2.0.0"
       }
     },
-    "preact": {
-      "version": "8.2.7",
-      "resolved": "https://registry.npmjs.org/preact/-/preact-8.2.7.tgz",
-      "integrity": "sha512-m34Ke8U32HyKRVzUOCAcaiIBLR2ye6syiuRclU5DxyixDPDFqdLbIElhERBrF6gDbPKQR+Vpv5bZ9CCbvN6pdQ==",
-      "optional": true
-    },
     "prebuild-install": {
       "version": "5.3.2",
       "resolved": "https://registry.npmjs.org/prebuild-install/-/prebuild-install-5.3.2.tgz",
@@ -1706,19 +1617,10 @@
       "version": "7.1.1",
       "resolved": "https://registry.npmjs.org/promise/-/promise-7.1.1.tgz",
       "integrity": "sha512-mxw1Fcl1jxLdpzS7MTIxrdiWk3CeMvZvVSGWE4P9eml3diZPBZTNV4oQsdYY3fY6j9udbmC1mSP6lqlzg6voBA==",
-      "requires": {
-        "asap": "~2.0.3"
-      }
-    },
-    "prop-types": {
-      "version": "15.6.0",
-      "resolved": "https://registry.npmjs.org/prop-types/-/prop-types-15.6.0.tgz",
-      "integrity": "sha1-zq8IMCL8RrSjX2nhPvda7Q1jmFY=",
+      "dev": true,
       "optional": true,
       "requires": {
-        "fbjs": "^0.8.16",
-        "loose-envify": "^1.3.1",
-        "object-assign": "^4.1.1"
+        "asap": "~2.0.3"
       }
     },
     "prr": {
@@ -1763,31 +1665,6 @@
         "strip-json-comments": "~2.0.1"
       }
     },
-    "react": {
-      "version": "15.6.2",
-      "resolved": "https://registry.npmjs.org/react/-/react-15.6.2.tgz",
-      "integrity": "sha1-26BDSrQ5z+gvEI8PURZjkIF5qnI=",
-      "optional": true,
-      "requires": {
-        "create-react-class": "^15.6.0",
-        "fbjs": "^0.8.9",
-        "loose-envify": "^1.1.0",
-        "object-assign": "^4.1.0",
-        "prop-types": "^15.5.10"
-      }
-    },
-    "react-dom": {
-      "version": "15.6.2",
-      "resolved": "https://registry.npmjs.org/react-dom/-/react-dom-15.6.2.tgz",
-      "integrity": "sha1-Qc+t9pO3V/rycIRDodH9WgK+9zA=",
-      "optional": true,
-      "requires": {
-        "fbjs": "^0.8.9",
-        "loose-envify": "^1.1.0",
-        "object-assign": "^4.1.0",
-        "prop-types": "^15.5.10"
-      }
-    },
     "read-pkg": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-1.1.0.tgz",
@@ -1910,11 +1787,6 @@
       "resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz",
       "integrity": "sha1-BF+XgtARrppoA93TgrJDkrPYkPc="
     },
-    "setimmediate": {
-      "version": "1.0.5",
-      "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.5.tgz",
-      "integrity": "sha512-MATJdZp8sLqDl/68LfQmbP8zKPLQNV6BIZoIgrscFDQ+RsvK/BxeDQOgyxKKoh0y/8h3BqVFnCqQ/gd+reiIXA=="
-    },
     "sharp": {
       "version": "0.22.1",
       "resolved": "https://registry.npmjs.org/sharp/-/sharp-0.22.1.tgz",
@@ -2233,11 +2105,6 @@
       "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
       "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c="
     },
-    "ua-parser-js": {
-      "version": "0.7.14",
-      "resolved": "https://registry.npmjs.org/ua-parser-js/-/ua-parser-js-0.7.14.tgz",
-      "integrity": "sha1-EQ1T+kw/MmwSEpK76skE0uAzh8o="
-    },
     "universalify": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
@@ -2291,11 +2158,6 @@
       "integrity": "sha1-cSRdHjTKz1TkJr2VX4zG7hLQJMI=",
       "optional": true
     },
-    "whatwg-fetch": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/whatwg-fetch/-/whatwg-fetch-2.0.3.tgz",
-      "integrity": "sha1-nITsLc9oGH/wC8ZOEnS0QhduHIQ="
-    },
     "which-pm-runs": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/which-pm-runs/-/which-pm-runs-1.0.0.tgz",
diff --git a/ui (gen4)/package.json b/ui (gen4)/package.json
index 0e74682b..f89c49d2 100755
--- a/ui (gen4)/package.json	
+++ b/ui (gen4)/package.json	
@@ -20,7 +20,6 @@
   "dependencies": {
     "app-module-path": "^1.0.6",
     "async-json": "0.0.2",
-    "commander": "^2.20.3",
     "electron": "^5.0.12",
     "exiftool": "^0.0.3",
     "fs-extra": "^7.0.1",
@@ -32,7 +31,6 @@
     "ig-features": "^3.4.0",
     "ig-object": "^2.0.0",
     "moment": "^2.24.0",
-    "openseadragon": "^2.4.1",
     "requirejs": "^2.3.6",
     "requirejs-plugins": "^1.0.2",
     "sharp": "^0.22.1",
@@ -40,9 +38,15 @@
     "v8-compile-cache": "^2.1.0",
     "wildglob": "^0.1.1"
   },
+  "dependencies-disabled": {
+    "openseadragon": "^2.4.1",
+    "commander": "^2.20.3",
+    "flickrapi": "^0.3.28"
+  },
   "optionalDependencies": {
-    "pica": "^3.0.6",
-    "flickrapi": "^0.3.28",
+    "pica": "^3.0.6"
+  },
+  "optionalDependencies-disabled": {
     "preact": "^8.2.7",
     "react": "^15.6.2",
     "react-dom": "^15.6.2"