No specific info about version 3.0. Please visit the main page of Folder icon on Mac Informer.
Customize the appearance of the system by changing the original icons.
Used to automatically populate folder icons with the artwork contained in a folders audio files.
Allows you to customize the icons of applications and folders on your Mac.
Create custom folder icons and custom file icons on your Mac.
This app allows you to apply a single custom icon to any number of files.