diff --git a/AppKit/Themes/Aristo2/Resources/window-standard-divider-center.png b/AppKit/Themes/Aristo2/Resources/window-standard-divider-center.png
new file mode 100644
index 000000000..33a6de59b
Binary files /dev/null and b/AppKit/Themes/Aristo2/Resources/window-standard-divider-center.png differ
diff --git a/AppKit/Themes/Aristo2/Resources/window-standard-divider-left.png b/AppKit/Themes/Aristo2/Resources/window-standard-divider-left.png
new file mode 100644
index 000000000..d348340cb
Binary files /dev/null and b/AppKit/Themes/Aristo2/Resources/window-standard-divider-left.png differ
diff --git a/AppKit/Themes/Aristo2/Resources/window-standard-divider-right.png b/AppKit/Themes/Aristo2/Resources/window-standard-divider-right.png
new file mode 100644
index 000000000..0aed27b40
Binary files /dev/null and b/AppKit/Themes/Aristo2/Resources/window-standard-divider-right.png differ
diff --git a/AppKit/Themes/Aristo2/ThemeDescriptors.j b/AppKit/Themes/Aristo2/ThemeDescriptors.j
index b9931737c..7af0d140f 100644
--- a/AppKit/Themes/Aristo2/ThemeDescriptors.j
+++ b/AppKit/Themes/Aristo2/ThemeDescriptors.j
@@ -1873,6 +1873,14 @@ var themedButtonValues = nil,
                 bottomHeight:5.0
             }),
 
+        dividerColor = PatternColor(
+            "window-standard-divider{position}.png",
+            {
+                width: 1.0,
+                height: 1.0,
+                orientation: PatternIsHorizontal
+            }),
+
         closeButtonImage =                  PatternImage(@"window-standard-close-button.png", 16, 16),
         closeButtonImageInactive =          PatternImage(@"window-standard-close-button-inactive.png", 16, 16),
         closeButtonImageHighlighted =       PatternImage(@"window-standard-button-highlighted.png", 16, 16),
@@ -1905,7 +1913,7 @@ var themedButtonValues = nil,
             [@"title-vertical-alignment",   CPCenterVerticalTextAlignment],
             [@"title-bar-height",           31],
 
-            [@"divider-color",              [CPColor colorWithHexString:@"858585"]],
+            [@"divider-color",              dividerColor],
             [@"body-color",                 bezelColor],
             [@"title-bar-height",           31],