Install apt-config-icons by entering the following commands in the terminal:
sudo apt update sudo apt install apt-config-icons
APT configuration snippet to enable icon downloads
This package contains an APT configuration snippet that enables the download of an icon tarball containing application icons for display in software centers. Icons get downloaded directly from the archive via regular cache updates, and match the software currently available in the respective archive suites. . This snippet enables icons of the default icon size set in the AppStream specification for software centers, 64x64px. It also enables downloads of smaller 48x48px icons.