diff --git a/src/bin/image_blend_fade_pow2_unscaled.c b/src/bin/image_blend_fade_pow2_unscaled.c
index 8b731a1..029f011 100644
--- a/src/bin/image_blend_fade_pow2_unscaled.c
+++ b/src/bin/image_blend_fade_pow2_unscaled.c
@@ -30,8 +30,8 @@ static void _setup(void)
         evas_object_image_file_set(o, build_path("logo.png"), NULL);
 	evas_object_image_fill_set(o, 0, 0, 120, 160);
 	evas_object_resize(o, 120, 160);
-        a = 256 - (1 << (rnd() & 0x7));
-        if (a > 255) a = 255;
+        a = 256 - (1 << ((rnd() % 8) + 1));
+        if (a < 128) a = 128;
         evas_object_color_set(o, a, a, a, a);
         evas_object_show(o);
      }
diff --git a/src/bin/image_blend_solid_fade_pow2_unscaled.c b/src/bin/image_blend_solid_fade_pow2_unscaled.c
index ad8d8b5..14e45e8 100644
--- a/src/bin/image_blend_solid_fade_pow2_unscaled.c
+++ b/src/bin/image_blend_solid_fade_pow2_unscaled.c
@@ -30,8 +30,8 @@ static void _setup(void)
         evas_object_image_file_set(o, build_path("image.png"), NULL);
 	evas_object_image_fill_set(o, 0, 0, 120, 160);
 	evas_object_resize(o, 120, 160);
-        a = 256 - (1 << (rnd() & 0x7));
-        if (a > 255) a = 255;
+        a = 256 - (1 << ((rnd() % 8) + 1));
+        if (a < 128) a = 128;
         evas_object_color_set(o, a, a, a, a);
         evas_object_show(o);
      }
diff --git a/src/bin/rect_blend_pow2.c b/src/bin/rect_blend_pow2.c
index 1e6c20c..29a7d02 100644
--- a/src/bin/rect_blend_pow2.c
+++ b/src/bin/rect_blend_pow2.c
@@ -28,8 +28,8 @@ static void _setup(void)
 
 	o = evas_object_rectangle_add(evas);
 	o_images[i] = o;
-	a = 256 - (1 << (rnd() & 0x7));
-        if (a > 255) a = 255;
+        a = 256 - (1 << ((rnd() % 8) + 1));
+        if (a < 128) a = 128;
 	r = ((rnd()&0xff) * a) / 255;
 	g = ((rnd()&0xff) * a) / 255;
 	b = ((rnd()&0xff) * a) / 255;
diff --git a/src/bin/rect_blend_pow2_few.c b/src/bin/rect_blend_pow2_few.c
index 1edc519..a45e4b1 100644
--- a/src/bin/rect_blend_pow2_few.c
+++ b/src/bin/rect_blend_pow2_few.c
@@ -31,8 +31,8 @@ static void _setup(void)
 
 	o = evas_object_rectangle_add(evas);
 	o_images[i] = o;
-        a = 256 - (1 << (rnd() & 0x7));
-        if (a > 255) a = 255;
+        a = 256 - (1 << ((rnd() % 8) + 1));
+        if (a < 128) a = 128;
 	r = ((rnd()&0xff) * a) / 255;
 	g = ((rnd()&0xff) * a) / 255;
 	b = ((rnd()&0xff) * a) / 255;