What is a Theme? A WordPress Theme is a collection of files that work together to produce a graphical interface with an underlying unifying design for a weblog. These files are called template files. — http://codex.wordpress.org/Themes
style.css /* Theme Name: Twenty Thirteen Theme URI: http://wordpress.org/themes/twentythirteen Author: the WordPress team Author URI: http://wordpress.org/ Description: Much longer than this ;) Version: 0.1 License: GNU General Public License v2 or later License URI: http://www.gnu.org/licenses/gpl-2.0.html Tags: black, brown, ETC Text Domain: twentythirteen */
style.css /* Theme Name: Twenty Thirteen Theme URI: http://wordpress.org/themes/twentythirteen Author: the WordPress team Author URI: http://wordpress.org/ Description: Much longer than this ;) Version: 0.1 License: GNU General Public License v2 or later License URI: http://www.gnu.org/licenses/gpl-2.0.html Tags: black, brown, ETC Text Domain: twentythirteen */
functions.php ★ Tiny, theme-specific plugin ★ Should only have things that are theme-specific ★ Telling WordPress what features you support and how you support them