I have purchased a Sony Xperia U and I am quite happy with my purchase. I really love the transparent light bar which changes with the theme. Now I just wanted to know is there any custom theme or application which will change my themes automatically. Because every time I have to manually change my theme so that the color of my transparent bar changes automatically. Only changing the wallpaper does not change the transparent bars color. So I am looking for any such app or custom theme which will automatically change the themes for me. Hope someone has come with any such app or theme. Thanks in Advance.