A close-up shot of the 'Get Info' window on a Mac, with the 'Icon' tab selected, and the 'Replace' button highlighted, ready to be clicked to change the folder icon.

A screenshot of a Mac desktop with a folder highlighted, showing the process of right-clicking on the folder and selecting 'Get Info' to access the 'Get Info' window, where the icon can be changed.

A step-by-step guide on how to change the default folder icon on a Mac, including the process of creating a new icon, selecting the desired image, and applying it to the folder.