Icon

Icons
The icon of a computer file is the image displayed to represent it. In Game Maker, the icon can be changed from the default Game Maker logo to an image of the creator's choice in the global game settings under the "Loading" tab. All icons end with the extension '.ico' on Windows or '.icns' on Mac.

Icon Creation
The main problem with icons, however, is the fact that they must be a certain file type that is not able to be created with the default image editing programs, and indeed even with many other professional image editing applications. However there are many programs on the Internet, most notably 'IcoFx', whose benefits include Apple and Windows icon creation, extraction of icons from executable files and dlls, and an excellent image editor. On top of this, it is completely free, although it is partly debated as to its security.