M-x package-install challenger-deep-theme
Add the emacs theme files to ~/.emacs.d/themes.
To load a theme add the following to your init.el
(add-to-list 'custom-theme-load-path "~/.emacs.d/themes") (load-theme 'challenger-deep t)
First make sure no other themes are enabled with
M-x disable-theme. To load the theme type
M-x load-theme RET challenger-deep RET.
To load the theme at startup at the following to your init.el:
(load-theme 'challenger-deep t)