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 Marker - Change folder color in two mouse clicks for easy at-a-glance identification.
CandyBar - Brought to you by Panic and the Iconfactory, CandyBar 3 brings the best of CandyBar 2 and Pixadex 2...
Teorex FolderIco - FolderIco allows to change the color of Windows folder in one click!
LiteIcon - LiteIcon is a simple app which allows you to change your system icons quickly and easily.
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