How to install themes

1. Get Themely

(Without CFW)
  1. Get homebrew;
  2. Download Themely from here;
  3. Put the 3DSX file in the /3ds folder in your SD Card;
(With CFW)
  1. Open FBI;
  2. Select TitleDB;
  3. Find Themely in the list and install;

2. Install the theme

  1. Download a theme from 3DSThem.es
  2. Put the ZIP file you've downloaded into the /Themes folder in your SD Card (create it if it doesn't exist);
  3. Boot up Themely, and install the theme

Enjoy your new custom theme! :D

How to install badges ยท How to install splash screens