Install gnome-colors-common by entering the following commands in the terminal:
sudo apt update sudo apt install gnome-colors-common
Description:
common icons for all GNOME-Colors icon themes
GNOME-Colors is a set of GNOME icon themes, with some inspiration from Tango, Elementary, Discovery, Tango Generator and others. . Its goal is to create an easy way for anyone to make their desktop consistently match their moods, wallpapers, laptop colors, etc. . The icons were designed to match the Shiki-Colors GTK+ Themes and their additional artwork. . This package provides the common icons used by all variants of the GNOME-Colors icon theme.
Homepage: http://code.google.com/p/gnome-colors/
Version: 5.5.1-2ubuntu2
Section: universe/gnome