In November, I downloaded an app that would have a pop-up appear every time I received a text message. It was a black pop up box with a green "blurb" shape with a smiley face on it. It gave me the options to hit open or close. I could move the pop around the screen, I could have it in the center or in a corner. With that, I could change the color of the LED light when I received a text.
I had to get my phone reset about a week ago and I lost all my apps. But, I can't seem to find this one anywhere.