tweak style

lib/ace/autocomplete.js

@@ -225,6 +225,8 @@ var Autocomplete = function() {
         if (keepPopupPosition && this.base && this.completions) {
             var pos = this.editor.getCursorPosition();
             var prefix = ace.session.getTextRange({start: this.base, end: pos});
+            if (prefix == this.completions.filterText)
+                return;
             this.completions.setFilter(prefix);
             if (!this.completions.filtered.length)
                 return this.detach();

lib/ace/autocomplete/popup.js

@@ -246,12 +246,14 @@ dom.importCssString("\
     z-index: -1;\
 }\
 .ace_autocomplete .ace_completion-highlight{\
-    font-weight: bold\
+    font-weight: bold;\
+    text-shadow: 0 0 0.5px #000\
 }\
 .ace_autocomplete {\
     width: 280px;\
     z-index: 200000;\
     background: #fbfbfb;\
+    color: #444;\
     border: 1px lightgray solid;\
     position: fixed;\
     box-shadow: 2px 3px 5px rgba(0,0,0,.2);\