Ok, now that I've got your attention, "What's the point of this project?", you ask. Well, the main idea here is to be able to design lots of buttons on the screen which can be pressed and the program that you write doesn't need a sprite for each "button". This allows you to make "skins" for your projects. This idea would be most useful for projects like calculators which need a lot of buttons, or various types of board games. I'm working on a mesh battleship game right now which uses this idea. Check out the comments I've made in the code, and if you have questions please feel free to ask me by posting comments. Have fun scratching!