I did mine in Photoshop. I always keep the background on a separate layer. This way I can turn it off as I work to view the image, create the buttons and other graphics ...... helps a lot. Doesn't matter if its text or not.
Example: First screenie is with background. Notice the bottom right where it says layers. The 'eye' is on.
Second screenie is with the 'eye' or background layer turned off.