This article explains how to change folder icons on a Mac. You'll learn how to change the icon for an individual folder, how to change the default folder icon, and more.
How to Change Your Desktop Folder Icons on Mac
Changing a folder icon on Mac is similar to changing the color of a folder, but you'll need to obtain an image to use as your new folder icon. If you have an .ICN file, you can simply drag and drop the file into the Folder Info window. If you have a .PNG or .JPG file, you'll need to open it in Preview, copy it, and paste it into the Folder Info window.
Find the image you want to use as a folder icon and double-click it to open it in Preview.
Open the image in Preview, press Command + A, and then click Edit.
