MacOSicons.com - Free 5000+ macOS app icons in the style of macOS Monterey, Big Sur. Fully open source and community led. How to install custom icons on macOS Monterey, Big Sur.
Folder Marker - Change folder color in two mouse clicks for easy at-a-glance identification.
Moka Icon Set - Free Moka icons in various UI design styles for web and mobile. Download free static and animated Moka vector icons in PNG, SVG, GIF formats
Folder Painter - Folder Painter is an easy to use Portable Freeware program, which allows you to change the color of the icon representing a chosen folder to any color you like
Replacicon - Just updated to macOS Big Sur? You may have noticed some of the apps in your Dock look a bit inconsistent with the rest of the system.
Folder Colorizer - Windows Explorer is too boring? Color it up!