Install colordiff by entering the following commands in the terminal:
sudo apt update sudo apt install colordiff
Description:
tool to colorize 'diff' output
ColorDiff is a wrapper for the 'diff' command. It produces the same output as diff, but with colored highlighting to improve readability. The color schemes can be customized. . The output is similar to the syntax-highlighting mode of Vim or Emacs when editing a patch created by diff.
Homepage: http://www.colordiff.org/
Version: 1.0.18-1
Section: universe/text