The new Yaru in Ubuntu 20.04 is awesome! I love it!
But there isn't an icon theme working fine with Folder Color & Yaru… until now. Just in time!
How to install it
In Ubuntu 20.04 run these commands from a Terminal (from code is available here):
sudo apt install folder-color sudo add-apt-repository ppa:costales/yaru-colors-folder-color sudo apt install yaru-colors-folder-color nautilus -q
All credits are going to Jan Schröder. Thanks mate!