Display error when unable to learn keyword

client/application.js

@@ -77,7 +77,12 @@
         };
 
         $.getJSON('/node/addKeyword', query, function(results) {
-            console.log(results);
+            if (results.success) {
+                $('#learnDlg').modal('hide');
+            }
+            else {
+                $('#learnError').fadeIn();
+            }
         });
     }
 

client/index.html

@@ -87,6 +87,7 @@
                                     </div>
                                 </div>
                             </div>
+                            <div class="alert alert-danger" id="learnError" style="display: none;">Error learning keyword</div>
                         </div>
                         <div class="modal-footer">
                             <div class="btn-group">

server/search.js

@@ -258,7 +258,7 @@ function execQuery(query, callback) {
             );
 
             graphColumns[keyword] = {
-                color: '#607080',
+                color: '#428bca',
                 value: query.searchParams[keyword],
                 hints: searchHints,
                 steps: query.hintSteps