Folder Customizer cydia tweak allows you to customize Folder colors.
KURTI displays an animation image based off of actions performed in the messages app. For example when you save an image to the camera roll a small picture of the camera app will quickly appear and fade away within a matter of seconds. Many other actions have images as well such as the assign to contact image, copy/paste, print, and even composing a new message. All of the actions mentioned have their own image that displays during that action. Images can also be changed using ifile.
Configure options from Settings.