Install rxvt-unicode by entering the following commands in the terminal:
sudo apt update sudo apt install rxvt-unicode
Description:
RXVT-like terminal emulator with Unicode and 256-color support
rxvt-unicode is a modern, Unicode-aware color xterm replacement that uses significantly less memory than a conventional xterm and many other Unicode supporting terminal emulators. . It supports using multiple fonts at the same time, including Xft fonts, and client-server technology to reduce memory consumption when using multiple windows. . This package is configured with 256-color support, and TERM set to "rxvt-unicode-256color". Any other systems you log into must have this terminfo entry installed!
Homepage: http://software.schmorp.de/pkg/rxvt-unicode.html
Version: 9.22-3
Section: universe/x11