Install rxvt-unicode-256color by entering the following commands in the terminal:
sudo apt update sudo apt install rxvt-unicode-256color
Description:
dummy transitional package for rxvt-unicode
This is a dummy transitional package transitioning rxvt-unicode-256color to rxvt-unicode. It can safely be removed.
Homepage: http://software.schmorp.de/pkg/rxvt-unicode.html
Version: 9.22-3
Section: universe/x11