diff --git a/lib/ace/css/editor.css b/lib/ace/css/editor.css
index c1cd0f0c..0a668fff 100644
--- a/lib/ace/css/editor.css
+++ b/lib/ace/css/editor.css
@@ -50,9 +50,11 @@
 
 .ace_gutter-cell.ace_info {
     background-image: url("data:image/gif;base64,R0lGODlhEAAQAMQAAAAAAEFBQVJSUl5eXmRkZGtra39/f4WFhYmJiZGRkaampry8vMPDw8zMzNXV1dzc3OTk5Orq6vDw8P///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAkAABQALAAAAAAQABAAAAUuICWOZGmeaBml5XGwFCQSBGyXRSAwtqQIiRuiwIM5BoYVbEFIyGCQoeJGrVptIQA7");
-    background-repeat: no-repeat;
     background-position: 2px center;
 }
+.ace_dark .ace_gutter-cell.ace_info {
+    background-image: url("data:image/png;base64,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");
+}
 
 .ace_editor .ace_sb {
     position: absolute;
@@ -246,9 +248,11 @@
 
     background-image: url("data:image/png,%89PNG%0D%0A%1A%0A%00%00%00%0DIHDR%00%00%00%05%00%00%00%05%08%06%00%00%00%8Do%26%E5%00%00%004IDATx%DAe%8A%B1%0D%000%0C%C2%F2%2CK%96%BC%D0%8F9%81%88H%E9%D0%0E%96%C0%10%92%3E%02%80%5E%82%E4%A9*-%EEsw%C8%CC%11%EE%96w%D8%DC%E9*Eh%0C%151(%00%00%00%00IEND%AEB%60%82");
     background-repeat: no-repeat;
-    background-position: center 5px;
+    background-position: center 4px;
 
     border-radius: 3px;
+    
+    border: 1px solid transparent;
 }
 
 .ace_fold-widget.end {
@@ -262,11 +266,8 @@
 .ace_fold-widget:hover {
     border: 1px solid rgba(0, 0, 0, 0.3);
     background-color: rgba(255, 255, 255, 0.2);
-    -moz-box-shadow:inset 0 1px 1px rgba(255, 255, 255, 0.7);
     -moz-box-shadow: 0 1px 1px rgba(255, 255, 255, 0.7);
-    -webkit-box-shadow:inset 0 1px 1px rgba(255, 255, 255, 0.7);
     -webkit-box-shadow: 0 1px 1px rgba(255, 255, 255, 0.7);
-    box-shadow:inset 0 1px 1px rgba(255, 255, 255, 0.7);
     box-shadow: 0 1px 1px rgba(255, 255, 255, 0.7);
     background-position: center 4px;
 }
@@ -274,14 +275,34 @@
 .ace_fold-widget:active {
     border: 1px solid rgba(0, 0, 0, 0.4);
     background-color: rgba(0, 0, 0, 0.05);
-    -moz-box-shadow:inset 0 1px 1px rgba(255, 255, 255);
     -moz-box-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);
-    -webkit-box-shadow:inset 0 1px 1px rgba(255, 255, 255);
     -webkit-box-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);
-    box-shadow:inset 0 1px 1px rgba(255, 255, 255);
     box-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);
 }
-
+/**
+ * Dark version for fold widgets
+ */
+.ace_dark .ace_fold-widget {
+    background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHklEQVQIW2P4//8/AzoGEQ7oGCaLLAhWiSwB146BAQCSTPYocqT0AAAAAElFTkSuQmCC");
+}
+.ace_dark .ace_fold-widget.end {
+    background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAH0lEQVQIW2P4//8/AxQ7wNjIAjDMgC4AxjCVKBirIAAF0kz2rlhxpAAAAABJRU5ErkJggg==");
+}
+.ace_dark .ace_fold-widget.closed {
+    background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAAFCAYAAACAcVaiAAAAHElEQVQIW2P4//+/AxAzgDADlOOAznHAKgPWAwARji8UIDTfQQAAAABJRU5ErkJggg==");
+}
+.ace_dark .ace_fold-widget:hover {
+    box-shadow: 0 1px 1px rgba(255, 255, 255, 0.2);
+    background-color: rgba(255, 255, 255, 0.1);
+}
+.ace_dark .ace_fold-widget:active {
+    -moz-box-shadow: 0 1px 1px rgba(255, 255, 255, 0.2);
+    -webkit-box-shadow: 0 1px 1px rgba(255, 255, 255, 0.2);
+    box-shadow: 0 1px 1px rgba(255, 255, 255, 0.2);
+}
+    
+    
+    
 .ace_fold-widget.invalid {
     background-color: #FFB4B4;
     border-color: #DE5555;