Add Folder Icons shows its main window when launched. This contains an empty folder list.
The Main Window
To add folders, drag them from the Finder to the list, use the button below the list, or use the "Add Folders to List..." entry in the "File" menu.
Adding Folders to the List
If you add a folder by mistake, select it then click on the button to remove it from the list.
Click on the "Add Icons" button to start adding icons straight away. Alternatively, click inside the list to select one or more folders. Use the button below the list to open a pop-up menu that lets you change the icon style for the selected folders.
Changing Assigned Icon Styles
(What is 'Add Sub-Folders Too'?)
You can mix and match as many different styles as you like within the list. Once you're happy with the folders and styles, click on "Add Icons" to get going. A progress bar is shown during processing and you can cancel icon generation using the "Stop" button.
Adding Icons
When this finishes, you can use the Finder to browse to the folders you put in the folder list. You should see your new icons straight away. (What if I don't see any new icons?)
Click on the "Remove Icons" button to remove custom icons from folders in the list. For more information, please see this page.