diff --git a/AppKit/CPSplitView.j b/AppKit/CPSplitView.j
index a4028aad8..f360a7752 100644
--- a/AppKit/CPSplitView.j
+++ b/AppKit/CPSplitView.j
@@ -68,8 +68,8 @@ var CPSplitViewHorizontalImage = nil,
 
 + (id)themeAttributes
 {
-    return [CPDictionary dictionaryWithObjects:[10.0, 1.0]
-                                       forKeys:[@"divider-thickness", @"pane-divider-thickness"]];
+    return [CPDictionary dictionaryWithObjects:[10.0, 1.0, [CPColor grayColor]]
+                                       forKeys:[@"divider-thickness", @"pane-divider-thickness", @"pane-divider-color"]];
 }
 
 /*
@@ -241,7 +241,7 @@ var CPSplitViewHorizontalImage = nil,
 {
     if (_isPaneSplitter)
     {
-        _DOMDividerElements[_drawingDivider].style.backgroundColor = "#A5A5A5";
+        _DOMDividerElements[_drawingDivider].style.backgroundColor = [[self currentValueForThemeAttribute:@"pane-divider-color"] cssString];
         _DOMDividerElements[_drawingDivider].style.backgroundImage = "";
     }
     else
diff --git a/AppKit/Themes/Aristo/ThemeDescriptors.j b/AppKit/Themes/Aristo/ThemeDescriptors.j
index 23f4b7e1a..4894d8eb3 100755
--- a/AppKit/Themes/Aristo/ThemeDescriptors.j
+++ b/AppKit/Themes/Aristo/ThemeDescriptors.j
@@ -1401,10 +1401,13 @@ var themedButtonValues = nil,
     [splitView addSubview:rightView];
 
 
+    [splitView setIsPaneSplitter:YES];
+
     var themedSplitViewValues =
         [
             [@"divider-thickness", 10.0],
-            [@"pane-divider-thickness", 1.0]
+            [@"pane-divider-thickness", 1.0],
+            [@"pane-divider-color", [CPColor colorWithRed:165.0 / 255.0 green:165.0 / 255.0 blue:165.0 / 255.0 alpha:1.0]]
         ];
 
     [self registerThemeValues:themedSplitViewValues forView:splitView];