diff --unified --recursive --text fvwm-2.6.9/fvwm/builtins.c fvwm-patched/fvwm/builtins.c
--- fvwm-2.6.9/fvwm/builtins.c	2018-05-27 09:47:03.000000000 -0600
+++ fvwm-patched/fvwm/builtins.c	2020-08-21 16:10:56.462693301 -0600
@@ -482,6 +482,21 @@
 			if (action)
 				action += next;
 		}
+		else if (!do_add && StrEquals(parm,"buttonwidth"))
+		{
+			int width = 0;
+			int next = 0;
+
+			sscanf(action, "%d%n", &width, &next);
+
+			if (decor->button_width != width)
+			{
+				decor->button_width = width;
+				decor->flags.has_changed = 1;
+			}
+			if (action)
+				action += next;
+		}
 		else if (!do_add && StrEquals(parm,"MinHeight"))
 		{
 			int height = 0;
Only in fvwm-patched/fvwm: builtins.c.orig
diff --unified --recursive --text fvwm-2.6.9/fvwm/frame.c fvwm-patched/fvwm/frame.c
--- fvwm-2.6.9/fvwm/frame.c	2020-08-21 16:09:27.172710920 -0600
+++ fvwm-patched/fvwm/frame.c	2020-08-21 16:10:56.466693390 -0600
@@ -1372,7 +1372,14 @@
 	tb_thick = fw->title_thickness;
 	nbuttons = fw->nr_left_buttons + fw->nr_right_buttons;
 	nbuttons_big = 0;
-	b_length = tb_thick;
+	if (fw->decor->button_width == 0)
+	{
+		b_length = tb_thick;
+	}
+	else
+	{
+		b_length = fw->decor->button_width;
+	}
 	t_length = tb_length - nbuttons * b_length;
 	if (nbuttons > 0 && t_length < MIN_WINDOW_TITLE_LENGTH)
 	{
Only in fvwm-patched/fvwm: frame.c.orig
diff --unified --recursive --text fvwm-2.6.9/fvwm/fvwm.h fvwm-patched/fvwm/fvwm.h
--- fvwm-2.6.9/fvwm/fvwm.h	2020-08-21 16:09:27.172710920 -0600
+++ fvwm-patched/fvwm/fvwm.h	2020-08-21 16:10:56.466693390 -0600
@@ -274,6 +274,7 @@
 		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;
Only in fvwm-patched/fvwm: fvwm.h.orig
diff --unified --recursive --text fvwm-2.6.9/fvwm/geometry.c fvwm-patched/fvwm/geometry.c
--- fvwm-2.6.9/fvwm/geometry.c	2020-08-21 16:09:27.176711008 -0600
+++ fvwm-patched/fvwm/geometry.c	2020-08-21 16:10:56.466693390 -0600
@@ -489,6 +489,7 @@
 	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;
@@ -506,18 +507,25 @@
 	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 =
@@ -538,6 +546,26 @@
 	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 =
Only in fvwm-patched/fvwm: geometry.c.orig
diff --unified --recursive --text fvwm-2.6.9/fvwm/screen.h fvwm-patched/fvwm/screen.h
--- fvwm-2.6.9/fvwm/screen.h	2020-08-21 15:30:39.091737766 -0600
+++ fvwm-patched/fvwm/screen.h	2020-08-21 16:10:56.466693390 -0600
@@ -284,6 +284,7 @@
 	char *tag;                    /* general style tag */
 	int title_height;           /* explicitly specified title bar height */
 	int min_title_height;
+	int button_width;
 	/* titlebar buttons */
 	TitleButton buttons[NUMBER_OF_TITLE_BUTTONS];
 	TitleButton titlebar;
Only in fvwm-patched/fvwm: screen.h.orig
diff --unified --recursive --text fvwm-2.6.9/fvwm/style.c fvwm-patched/fvwm/style.c
--- fvwm-2.6.9/fvwm/style.c	2020-08-21 16:09:27.176711008 -0600
+++ fvwm-patched/fvwm/style.c	2020-08-21 16:10:56.466693390 -0600
@@ -4714,6 +4714,12 @@
 			ps->change_mask.has_title_format_string = 1;
 
 		}
+		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);
@@ -5315,6 +5321,11 @@
 	{
 		flags->do_redecorate = True;
 	}
+
+	if (S_HAS_NO_TOP_BORDER(SCC(*ret_style)))
+	{
+		flags->do_redecorate = True;
+	}
 
 	/* has_mwm_border
 	 * has_mwm_buttons */
Only in fvwm-patched/fvwm: style.c.orig
diff --unified --recursive --text fvwm-2.6.9/fvwm/style.h fvwm-patched/fvwm/style.h
--- fvwm-2.6.9/fvwm/style.h	2020-08-21 16:09:27.176711008 -0600
+++ fvwm-patched/fvwm/style.h	2020-08-21 16:10:56.466693390 -0600
@@ -395,6 +395,11 @@
 	((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) \
Only in fvwm-patched/fvwm: style.h.orig
diff --unified --recursive --text fvwm-2.6.9/fvwm/window_flags.h fvwm-patched/fvwm/window_flags.h
--- fvwm-2.6.9/fvwm/window_flags.h	2020-08-21 16:09:27.176711008 -0600
+++ fvwm-patched/fvwm/window_flags.h	2020-08-21 16:10:56.466693390 -0600
@@ -358,6 +358,12 @@
 	(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) \