iOS7 transparent keyboard

So i noticed when i updated my ipad 4 to ios7, the keyboard was transparent in all apps that were updated for ios7. When i say transparent i mean in the same way the the notification shade is slightly transparent, and so is the quick toggle shade. Now after i updated to ios 7.0.4, the keyboard is a solid color with no transparency. Wonder why they made the change. I actually liked the transparent keyboard somewhat