Convert colors to variables.

src/styles/components/_settings.scss

@@ -65,7 +65,7 @@
 
 .settings {
   .version {
-    color: #ccc;
+    color: $settings-version;
     font-size: 10px;
     position: absolute;
     right: 10px;

src/styles/global/_variables.scss

@@ -40,6 +40,8 @@ $grey4: rgba(0,0,0,.4);
 $dgrey: rgb(34,34,34);
 $red: rgb(219,79,57);
 
+$tap-highlight: rgba(0, 0, 0, 0);
+
 $video-background: rgba(0,0,0,.4);
 $video-onlyaudio-background: #666;
 $video-onlyaudio: rgba(255,255,255,.3);
@@ -80,12 +82,14 @@ $chat-bottom-background: $chat-background;
 $chat-typing: $chat-meta;
 $chat-input-border-color: #66afe9;
 
+// fileinfo
 $fileinfo-background: white;
 $fileinfo-border: #ddd;
 $fileinfo-icon-background-color: #eee;
 $fileinfo-downloading-size-border: #ddd;
 
-$tap-highlight: rgba(0, 0, 0, 0);
+// settings
+$settings-version: #ccc;
 
 $breakpoint-small: 480px;
 $breakpoint-medium: 700px;