There are three simple steps to changing the date banner in Pink Touch 2.
1. Download the sprite.png and sprite-rtl.png file found in the pink-touch-2/imgages directory.
2. Modify the banner image at the bottom of these two files using an application like photoshop. You will need to maintain the two tones on this image (a brighter top with the darker flag to maintain the 2d effect) Be sure to note the color code # that you used on the brighter section of the image because you will have to update the style.css file with this same color.
3. Download the style.css file. Modify the background color # for the date banner found on line 501. (.hentry .date p {background: #eb374b;)