diff --git a/data/gui/default/macros/_initial.cfg b/data/gui/default/macros/_initial.cfg
index 40574c88a2d9..90034204680c 100644
--- a/data/gui/default/macros/_initial.cfg
+++ b/data/gui/default/macros/_initial.cfg
@@ -93,6 +93,10 @@
 	"64, 64, 64, 64"
 #enddef
 
+#define GUI__BORDER_COLOR
+	"114, 79, 46, 255"
+#enddef
+
 # Draws the background for a selected cell in a listbox. For now there's one
 # version for both tiny and normal gui.
 #define GUI__LISTBOX_SELECTED_CELL
diff --git a/data/gui/default/widget/combobox_default.cfg b/data/gui/default/widget/combobox_default.cfg
index 13dd757e96d8..b06fec086771 100644
--- a/data/gui/default/widget/combobox_default.cfg
+++ b/data/gui/default/widget/combobox_default.cfg
@@ -11,7 +11,7 @@
 		h = "(height)"
 
 		border_thickness = 1
-		border_color = "114, 79, 46, 255"
+		border_color = {GUI__BORDER_COLOR}
 
 	[/rectangle]
 #enddef
diff --git a/data/gui/default/widget/window_tooltip_large.cfg b/data/gui/default/widget/window_tooltip_large.cfg
index 478601bff695..ff3dce7c9361 100644
--- a/data/gui/default/widget/window_tooltip_large.cfg
+++ b/data/gui/default/widget/window_tooltip_large.cfg
@@ -69,7 +69,7 @@
 					fill_color = "5, 6, 12, 255"
 
 					border_thickness = 1
-					border_color = "114, 79, 46, 255"
+					border_color = {GUI__BORDER_COLOR}
 				[/rectangle]
 
 			[/draw]