diff --git a/src/devices/screen.c b/src/devices/screen.c
index 69ad2b2..4fe4722 100644
--- a/src/devices/screen.c
+++ b/src/devices/screen.c
@@ -20,8 +20,7 @@ static Uint8 blending[5][16] = {
 	{0, 0, 0, 0, 1, 0, 1, 1, 2, 2, 0, 2, 3, 3, 3, 0},
 	{0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3},
 	{1, 2, 3, 1, 1, 2, 3, 1, 1, 2, 3, 1, 1, 2, 3, 1},
-	{2, 3, 1, 2, 2, 3, 1, 2, 2, 3, 1, 2, 2, 3, 1, 2},
-	{1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0}};
+	{2, 3, 1, 2, 2, 3, 1, 2, 2, 3, 1, 2, 2, 3, 1, 2}};
 
 static Uint32 palette_mono[] = {
 	0x0f000000, 0x0fffffff};
@@ -41,7 +40,7 @@ screen_write(UxnScreen *p, Layer *layer, Uint16 x, Uint16 y, Uint8 color)
 static void
 screen_blit(UxnScreen *p, Layer *layer, Uint16 x, Uint16 y, Uint8 *sprite, Uint8 color, Uint8 flipx, Uint8 flipy, Uint8 twobpp)
 {
-	int v, h, opaque = blending[4][color];
+	int v, h, opaque = (color % 5) || !color;
 	for(v = 0; v < 8; v++) {
 		Uint16 c = sprite[v] | (twobpp ? sprite[v + 8] : 0) << 8;
 		for(h = 7; h >= 0; --h, c >>= 1) {