diff --git a/lib/gui/css/main.css b/lib/gui/css/main.css
index 11e54217..5a08e03c 100644
--- a/lib/gui/css/main.css
+++ b/lib/gui/css/main.css
@@ -6718,4 +6718,3 @@ body {
   .section-header > .button, .section-header > .progress-button {
     padding-left: 3px;
     padding-right: 3px; }
-
diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index a81a516b..84cfe810 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -3610,6 +3610,12 @@
       "resolved": "https://registry.npmjs.org/jodid25519/-/jodid25519-1.0.2.tgz",
       "optional": true
     },
+    "js-base64": {
+      "version": "2.1.9",
+      "from": "js-base64@>=2.1.8 <3.0.0",
+      "resolved": "https://registry.npmjs.org/js-base64/-/js-base64-2.1.9.tgz",
+      "dev": true
+    },
     "js-message": {
       "version": "1.0.5",
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@@ -3927,6 +3933,12 @@
       "resolved": "https://registry.npmjs.org/lodash.memoize/-/lodash.memoize-3.0.4.tgz",
       "dev": true
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+    "lodash.mergewith": {
+      "version": "4.6.0",
+      "from": "lodash.mergewith@>=4.6.0 <5.0.0",
+      "resolved": "https://registry.npmjs.org/lodash.mergewith/-/lodash.mergewith-4.6.0.tgz",
+      "dev": true
+    },
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       "from": "lodash.partition@>=4.2.0 <5.0.0",
@@ -5094,118 +5106,22 @@
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-      "from": "node-sass@>=3.8.0 <4.0.0",
-      "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-3.13.1.tgz",
+      "version": "4.5.3",
+      "from": "node-sass@latest",
+      "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-4.5.3.tgz",
       "dev": true,
       "dependencies": {
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-          "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.6.0.tgz",
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-          "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
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-          "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.5.tgz",
-          "dev": true
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           "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-3.0.1.tgz",
           "dev": true
         },
-        "delayed-stream": {
-          "version": "1.0.0",
-          "from": "delayed-stream@>=1.0.0 <1.1.0",
-          "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
-          "dev": true
-        },
-        "form-data": {
-          "version": "2.1.2",
-          "from": "form-data@>=2.1.1 <2.2.0",
-          "resolved": "https://registry.npmjs.org/form-data/-/form-data-2.1.2.tgz",
-          "dev": true
-        },
-        "har-validator": {
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-          "from": "har-validator@>=4.2.1 <4.3.0",
-          "resolved": "https://registry.npmjs.org/har-validator/-/har-validator-4.2.1.tgz",
-          "dev": true
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-        "hawk": {
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-          "from": "hawk@>=3.1.3 <3.2.0",
-          "resolved": "https://registry.npmjs.org/hawk/-/hawk-3.1.3.tgz",
-          "dev": true
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-          "resolved": "https://registry.npmjs.org/http-signature/-/http-signature-1.1.1.tgz",
-          "dev": true
-        },
         "lodash.assign": {
           "version": "4.2.0",
           "from": "lodash.assign@>=4.2.0 <5.0.0",
           "resolved": "https://registry.npmjs.org/lodash.assign/-/lodash.assign-4.2.0.tgz",
           "dev": true
-        },
-        "mime-db": {
-          "version": "1.26.0",
-          "from": "mime-db@>=1.26.0 <1.27.0",
-          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.26.0.tgz",
-          "dev": true
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-        "mime-types": {
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-          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.14.tgz",
-          "dev": true
-        },
-        "oauth-sign": {
-          "version": "0.8.2",
-          "from": "oauth-sign@>=0.8.1 <0.9.0",
-          "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.8.2.tgz",
-          "dev": true
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-        "qs": {
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-          "from": "qs@>=6.4.0 <6.5.0",
-          "resolved": "https://registry.npmjs.org/qs/-/qs-6.4.0.tgz",
-          "dev": true
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-          "version": "2.81.0",
-          "from": "request@>=2.61.0 <3.0.0",
-          "resolved": "https://registry.npmjs.org/request/-/request-2.81.0.tgz",
-          "dev": true
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-        "tunnel-agent": {
-          "version": "0.6.0",
-          "from": "tunnel-agent@>=0.6.0 <0.7.0",
-          "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
-          "dev": true
-        },
-        "uuid": {
-          "version": "3.0.1",
-          "from": "uuid@^3.0.0",
-          "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.0.1.tgz",
-          "dev": true
         }
       }
     },
@@ -6142,10 +6058,36 @@
       "dev": true
     },
     "sass-graph": {
-      "version": "2.1.2",
+      "version": "2.2.4",
       "from": "sass-graph@>=2.1.1 <3.0.0",
-      "resolved": "https://registry.npmjs.org/sass-graph/-/sass-graph-2.1.2.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/sass-graph/-/sass-graph-2.2.4.tgz",
+      "dev": true,
+      "dependencies": {
+        "set-blocking": {
+          "version": "2.0.0",
+          "from": "set-blocking@>=2.0.0 <3.0.0",
+          "resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz",
+          "dev": true
+        },
+        "string-width": {
+          "version": "1.0.2",
+          "from": "string-width@>=1.0.2 <2.0.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
+          "dev": true
+        },
+        "yargs": {
+          "version": "7.1.0",
+          "from": "yargs@>=7.0.0 <8.0.0",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-7.1.0.tgz",
+          "dev": true
+        },
+        "yargs-parser": {
+          "version": "5.0.0",
+          "from": "yargs-parser@>=5.0.0 <6.0.0",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-5.0.0.tgz",
+          "dev": true
+        }
+      }
     },
     "sass-lint": {
       "version": "1.10.2",
@@ -6240,6 +6182,20 @@
       "from": "sax@>=0.6.0",
       "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.2.tgz"
     },
+    "scss-tokenizer": {
+      "version": "0.2.3",
+      "from": "scss-tokenizer@>=0.2.3 <0.3.0",
+      "resolved": "https://registry.npmjs.org/scss-tokenizer/-/scss-tokenizer-0.2.3.tgz",
+      "dev": true,
+      "dependencies": {
+        "source-map": {
+          "version": "0.4.4",
+          "from": "source-map@>=0.4.2 <0.5.0",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.4.4.tgz",
+          "dev": true
+        }
+      }
+    },
     "seek-bzip": {
       "version": "1.0.5",
       "from": "seek-bzip@>=1.0.5 <2.0.0",
@@ -6488,6 +6444,12 @@
       "from": "stack-trace@>=0.0.0 <0.1.0",
       "resolved": "https://registry.npmjs.org/stack-trace/-/stack-trace-0.0.9.tgz"
     },
+    "stdout-stream": {
+      "version": "1.4.0",
+      "from": "stdout-stream@>=1.4.0 <2.0.0",
+      "resolved": "https://registry.npmjs.org/stdout-stream/-/stdout-stream-1.4.0.tgz",
+      "dev": true
+    },
     "stream-browserify": {
       "version": "2.0.1",
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diff --git a/package.json b/package.json
index 6f79f2e3..36e53238 100644
--- a/package.json
+++ b/package.json
@@ -128,7 +128,7 @@
     "mochainon": "^1.0.0",
     "nock": "^9.0.9",
     "node-gyp": "^3.5.0",
-    "node-sass": "^3.8.0",
+    "node-sass": "^4.5.3",
     "sass-lint": "^1.10.2",
     "tmp": "0.0.31",
     "versionist": "^2.1.0"