Index: fvwm/style.c
===================================================================
--- fvwm/style.c	(revision 9)
+++ fvwm/style.c	(revision 10)
@@ -3868,6 +3868,12 @@
 			S_SET_TITLE_DIR(SCM(*ps), DIR_MAJOR_MASK);
 			S_SET_TITLE_DIR(SCC(*ps), DIR_MAJOR_MASK);
 		}
+		else if (StrEquals(token, "TopBorder"))
+		{
+			S_SET_HAS_NO_TOP_BORDER(SCF(*ps), !on);
+			S_SET_HAS_NO_TOP_BORDER(SCM(*ps), 1);
+			S_SET_HAS_NO_TOP_BORDER(SCC(*ps), 1);
+		}
 		else if (StrEquals(token, "TopTitleRotated"))
 		{
 			S_SET_IS_TOP_TITLE_ROTATED(SCF(*ps), on);
@@ -4502,6 +4508,11 @@
 		flags->do_redecorate = True;
 	}
 
+	if (S_HAS_NO_TOP_BORDER(SCC(*ret_style)))
+	{
+		flags->do_redecorate = True;
+	}
+
 	/* has_mwm_border
 	 * has_mwm_buttons */
 	if (S_HAS_MWM_BORDER(SCC(*ret_style)) ||
Index: fvwm/style.h
===================================================================
--- fvwm/style.h	(revision 9)
+++ fvwm/style.h	(revision 10)
@@ -349,6 +349,11 @@
 	((c).s.has_slightly_rounded_corners)
 #define S_SET_HAS_SLIGHTLY_ROUNDED_CORNERS(c,x) \
 	((c).s.has_slightly_rounded_corners = !!(x))
+#define S_HAS_NO_TOP_BORDER(c) \
+	((c).s.has_no_top_border)
+#define S_SET_HAS_NO_TOP_BORDER(c,x) \
+	((c).s.has_no_top_border = !!(x))
+
 #define S_DO_EWMH_MINI_ICON_OVERRIDE(c) \
 	((c).s.do_ewmh_mini_icon_override)
 #define S_SET_DO_EWMH_MINI_ICON_OVERRIDE(c,x) \
Index: fvwm/geometry.c
===================================================================
--- fvwm/geometry.c	(revision 9)
+++ fvwm/geometry.c	(revision 10)
@@ -479,6 +479,7 @@
 	const FvwmWindow *fw, size_borders *borders, Bool is_shaded)
 {
 	int title_thickness;
+	int *title_border = NULL;
 	int bw;
 	
 	bw = HAS_FLUXBOX_HANDLES(fw) ? 1 : fw->boundary_width;
@@ -496,18 +497,25 @@
 	switch (GET_TITLE_DIR(fw))
 	{
 	case DIR_N:
-		borders->top_left.height += title_thickness;
+		title_border = &borders->top_left.height;
 		break;
 	case DIR_S:
-		borders->bottom_right.height += title_thickness;
+		title_border = &borders->bottom_right.height;
 		break;
 	case DIR_W:
-		borders->top_left.width += title_thickness;
+		title_border = &borders->top_left.width;
 		break;
 	case DIR_E:
-		borders->bottom_right.width += title_thickness;
+		title_border = &borders->bottom_right.width;
 		break;
 	}
+
+	if (HAS_NO_TOP_BORDER(fw))
+	{
+		*title_border = 1;
+	}
+	*title_border += title_thickness;
+	
 	borders->total_size.width =
 		borders->top_left.width + borders->bottom_right.width;
 	borders->total_size.height =
@@ -528,6 +536,26 @@
 	borders->bottom_right.width = bw;
 	borders->top_left.height = bw;
 	borders->bottom_right.height = fw->boundary_width;
+	
+	if (HAS_NO_TOP_BORDER(fw))
+	{
+		switch (GET_TITLE_DIR(fw))
+		{
+		case DIR_N:
+			borders->top_left.height = 1;
+			break;
+		case DIR_S:
+			borders->bottom_right.height = 1;
+			break;
+		case DIR_W:
+			borders->top_left.width = 1;
+			break;
+		case DIR_E:
+			borders->bottom_right.width = 1;
+			break;
+		}
+	}
+
 	borders->total_size.width =
 		borders->top_left.width + borders->bottom_right.width;
 	borders->total_size.height =
Index: fvwm/fvwm.h
===================================================================
--- fvwm/fvwm.h	(revision 9)
+++ fvwm/fvwm.h	(revision 10)
@@ -271,6 +271,7 @@
 		unsigned has_rounded_corners_top : 1;
 		unsigned has_rounded_corners_bottom : 1;
 		unsigned has_slightly_rounded_corners : 1;
+		unsigned has_no_top_border : 1;
 		focus_policy_t focus_policy;
 	} s;
 } common_flags_t;
Index: fvwm/window_flags.h
===================================================================
--- fvwm/window_flags.h	(revision 9)
+++ fvwm/window_flags.h	(revision 10)
@@ -340,6 +340,12 @@
 	(fw)->flags.common.s.has_slightly_rounded_corners = !!(x)
 #define SETM_HAS_SLIGHTLY_ROUNDED_CORNERS(fw,x) \
 	(fw)->flag_mask.common.s.has_slightly_rounded_corners = !!(x)
+#define HAS_NO_TOP_BORDER(fw) \
+	((fw)->flags.common.s.has_no_top_border)
+#define SET_HAS_NO_TOP_BORDER(fw,x) \
+	(fw)->flags.common.s.has_no_top_border = !!(x)
+#define SETM_HAS_NO_TOP_BORDER(fw,x) \
+	(fw)->flag_mask.common.s.has_no_top_border = !!(x)
 
 /* access to the special flags of a window */
 #define DO_REUSE_DESTROYED(fw) \