This icon set is bright, well made and good looking with all the light and dark themes. Unfortunately, the developer has stopped working on this icon set, but it is still a full set of icons that works with all versions of Linux.
Install into Linux Mint:
sudo add-apt-repository ppa:noobslab/icons sudo apt-get update sudo apt-get install colored-plastic-icons
To choose you as always here Appearance PreferenСЃes=>Customize=>Icons