diff --git a/implementations/uvm-ncc/graphics.h b/implementations/uvm-ncc/graphics.h
index c39d502..3863f59 100644
--- a/implementations/uvm-ncc/graphics.h
+++ b/implementations/uvm-ncc/graphics.h
@@ -1,5 +1,9 @@
 #include <stddef.h>
 
+#define   RED 0xFF_00_00
+#define GREEN 0x00_FF_00
+#define WHITE 0xFF_FF_FF
+
 void
 draw_background(u32* buffer, size_t w, size_t h)
 {
@@ -18,15 +22,13 @@ void
 carefree_alpha_blend_blit(u32* dest, u32* source, size_t dest_stride, u64 dest_x, u64 dest_y, u64 w, u64 h)
 {
 	u32* d = dest + dest_stride * dest_y + dest_x;
-	for (u64 x = 0; x < w; ++x) {
-		for (u64 y = 0; y < h; ++y) {
-			u32* pix_ptr = d + x + dest_stride * y;
+	for (u64 y = 0; y < h; ++y) {
+		for (u64 x = 0; x < w; ++x) {
 			u32* spix_ptr = source + x + w * y;
 			u32 pixel = *spix_ptr;
 			u8 alpha = pixel >> 24;
-			if (!alpha) {  // no alpha
-				continue;
-			}
+			if (!alpha) continue;
+			u32* pix_ptr = d + x + dest_stride * y;
 			if (0xFF == alpha) {
 				*pix_ptr = pixel;
 				continue;
@@ -42,3 +44,35 @@ carefree_alpha_blend_blit(u32* dest, u32* source, size_t dest_stride, u64 dest_x
 }
 
 
+void
+carefree_draw_horizontal_line(u32* dest, size_t dest_stride, u64 x, u64 y, u64 w, u32 color)
+{
+	u32* d = dest + dest_stride * y + x;
+	for (u64 i = 0; i < w; ++i) {
+		*d = color;
+		d = d + 1;
+	}
+}
+
+
+void
+carefree_draw_vertical_line(u32* dest, size_t dest_stride, u64 x, u64 y, u64 h, u32 color)
+{
+	u32* d = dest + dest_stride * y + x;
+	for (u64 i = 0; i < h; ++i) {
+		*d = color;
+		d = d + dest_stride;
+	}
+}
+
+
+void
+carefree_draw_box(u32* dest, size_t dest_stride, u64 y, u64 x, u64 w, u64 h, u32 color)
+{
+	carefree_draw_horizontal_line(dest, dest_stride, x,     y,     w, color);
+	carefree_draw_horizontal_line(dest, dest_stride, x,     y + h, w, color);
+	carefree_draw_vertical_line(  dest, dest_stride, x,     y,     h, color);
+	carefree_draw_vertical_line(  dest, dest_stride, x + w, y,     h, color);
+}
+
+
diff --git a/implementations/uvm-ncc/xerblin.c b/implementations/uvm-ncc/xerblin.c
index 68e7111..5b6d3f4 100644
--- a/implementations/uvm-ncc/xerblin.c
+++ b/implementations/uvm-ncc/xerblin.c
@@ -4,9 +4,6 @@
 #include "/home/sforman/src/Joypy/implementations/uvm-ncc/font/font.h"
 #include "/home/sforman/src/Joypy/implementations/uvm-ncc/graphics.h"
 
-#define   RED 0xFF_00_00
-#define GREEN 0x00_FF_00
-
 size_t FRAME_WIDTH = 768;
 size_t FRAME_HEIGHT = 512;
 u32 frame_buffer[393216];
@@ -42,12 +39,6 @@ draw_char(u8 ch, u64 dest_x, u64 dest_y)
 void
 keydown(u64 window_id, u16 keycode)
 {
-	if (KEY_TAB == keycode) {
-		print_str("bye! ");
-		print_i64(keycode);
-		print_endl();
-		exit(0);
-	}
 	if (KEY_BACKSPACE == keycode) {
 	} else if (KEY_TAB == keycode) {
 	} else if (KEY_RETURN == keycode) {
@@ -110,6 +101,9 @@ main()
 			128 + (ch / 26) * font_Inconsolata_22_height
 		);
 	}
+	u64 w = 3 + 26 * font_Inconsolata_22_width;
+	u64 h = 4 + 4 * font_Inconsolata_22_height;
+	carefree_draw_box(frame_buffer, FRAME_WIDTH, 126, 126, w, h, WHITE);
 	window_draw_frame(wid, frame_buffer);
 	window_on_keydown(wid, keydown);
 	window_on_mousedown(wid, mousedown);