To put in color themes:
1. Download the themes, and put them in a folder (A windows example would be):
“c:/Program File/Emacs/emacs/lisp/your_color_folder/”

2. Emacs must of course be able to find the files. You can check the “load path” (= where it looks) by:

The directories that Emacs searches through when an elisp file is to be loaded are stored in the load-path variable. This shows you the current load-path:

C-h v load-path RET.

3. You must modify the .emacs file as follows:

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(add-to-list 'load-path "c:/Program File/Emacs/emacs/lisp/your_color_folder/") 
(require 'color-theme)
(color-theme-initialize)
(color-theme-matrix)

That’s it!!