Install elpa-zenburn-theme by entering the following commands in the terminal:
sudo apt update sudo apt install elpa-zenburn-theme
Description:
low contrast color theme for Emacs
A port of the popular Vim theme Zenburn for Emacs, built using the new built-in theme support in Emacs 24. . Zenburn is designed to minimise eye strain during long periods of work.
Homepage: http://github.com/bbatsov/zenburn-emacs
Version: 2.5-1
Section: universe/lisp