Add CLAUDE.md documentation and sync WordPress core files - Add comprehensive CLAUDE.md documentation file with project architecture, development setup, database operations, WordPress CLI usage, file sync procedures, and Mercurial commands - Update WordPress core files from wordpress/ to wp/ directory - Sync latest WordPress admin interface, includes, and core functionality - Update plugins: portfolio plugin with latest BWS framework and fancybox integration - Maintain custom configuration and theme files 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>

     1

<?php

     2

/**

     3

 * Customize API: WP_Customize_Background_Image_Setting class

     4

 *

     5

 * @package WordPress

     6

 * @subpackage Customize

     7

 * @since 4.4.0

     8

 */

     9

    10

/**

    11

 * Customizer Background Image Setting class.

    12

 *

    13

 * @since 3.4.0

    14

 *

    15

 * @see WP_Customize_Setting

    16

 */

    17

final class WP_Customize_Background_Image_Setting extends WP_Customize_Setting {

    18

    19

	/**

    20

	 * Unique string identifier for the setting.

    21

	 *

    22

	 * @since 3.4.0

    23

	 * @var string

    24

	 */

    25

	public $id = 'background_image_thumb';

    26

    27

	/**

    28

	 * @since 3.4.0

    29

	 *

    30

	 * @param mixed $value The value to update. Not used.

    31

	 */

    32

	public function update( $value ) {

    33

		remove_theme_mod( 'background_image_thumb' );

    34

	}

    35

}