FM / includes

/home/altere25/berryglowbeauty.com/wp-admin/includes/

/home/altere25/berryglowbeauty.com/wp-admin/includes

Name	Size	Mode	Actions
admin-filters.php	6538	0644	edit dl rm
admin.php	3650	0644	edit dl rm
ajax-actions.php	140999	0644	edit dl rm
bookmark.php	9511	0644	edit dl rm
class-automatic-upgrader-skin.php	3161	0644	edit dl rm
class-bulk-plugin-upgrader-skin.php	2073	0644	edit dl rm
class-bulk-theme-upgrader-skin.php	2107	0644	edit dl rm
class-bulk-upgrader-skin.php	5309	0644	edit dl rm
class-core-upgrader.php	14458	0644	edit dl rm
class-custom-background.php	20782	0644	edit dl rm
class-custom-image-header.php	47888	0644	edit dl rm
class-file-upload-upgrader.php	4176	0644	edit dl rm
class-ftp-pure.php	5400	0644	edit dl rm
class-ftp-sockets.php	8449	0644	edit dl rm
class-ftp.php	27127	0644	edit dl rm
class-language-pack-upgrader-skin.php	2384	0644	edit dl rm
class-language-pack-upgrader.php	14739	0644	edit dl rm
class-pclzip.php	196037	0644	edit dl rm
class-plugin-installer-skin.php	4620	0644	edit dl rm
class-plugin-upgrader-skin.php	2731	0644	edit dl rm
class-plugin-upgrader.php	15185	0644	edit dl rm
class-theme-installer-skin.php	4385	0644	edit dl rm
class-theme-upgrader-skin.php	3702	0644	edit dl rm
class-theme-upgrader.php	20317	0644	edit dl rm
class-walker-category-checklist.php	4257	0644	edit dl rm
class-walker-nav-menu-checklist.php	5183	0644	edit dl rm
class-walker-nav-menu-edit.php	11839	0644	edit dl rm
class-wp-ajax-upgrader-skin.php	3258	0644	edit dl rm
class-wp-automatic-updater.php	36166	0644	edit dl rm
class-wp-comments-list-table.php	28462	0644	edit dl rm
class-wp-community-events.php	15948	0644	edit dl rm
class-wp-debug-data.php	47872	0644	edit dl rm
class-wp-filesystem-base.php	23104	0644	edit dl rm
class-wp-filesystem-direct.php	16438	0644	edit dl rm
class-wp-filesystem-ftpext.php	19964	0644	edit dl rm
class-wp-filesystem-ftpsockets.php	16753	0644	edit dl rm
class-wp-filesystem-ssh2.php	22074	0644	edit dl rm
class-wp-importer.php	7532	0644	edit dl rm
class-wp-internal-pointers.php	4534	0644	edit dl rm
class-wp-links-list-table.php	7828	0644	edit dl rm
class-wp-list-table-compat.php	1071	0644	edit dl rm
class-wp-list-table.php	38931	0644	edit dl rm
class-wp-media-list-table.php	22863	0644	edit dl rm
class-wp-ms-sites-list-table.php	20245	0644	edit dl rm
class-wp-ms-themes-list-table.php	21061	0644	edit dl rm
class-wp-ms-users-list-table.php	13961	0644	edit dl rm
class-wp-plugin-install-list-table.php	23176	0644	edit dl rm
class-wp-plugins-list-table.php	35985	0644	edit dl rm
class-wp-post-comments-list-table.php	1472	0644	edit dl rm
class-wp-posts-list-table.php	57100	0644	edit dl rm
class-wp-privacy-data-export-requests-list-table.php	4562	0644	edit dl rm
class-wp-privacy-data-removal-requests-list-table.php	4728	0644	edit dl rm
class-wp-privacy-policy-content.php	33141	0644	edit dl rm
class-wp-privacy-requests-table.php	11287	0644	edit dl rm
class-wp-screen.php	35761	0644	edit dl rm
class-wp-site-health-auto-updates.php	13518	0644	edit dl rm
class-wp-site-health.php	68134	0644	edit dl rm
class-wp-site-icon.php	6132	0644	edit dl rm
class-wp-terms-list-table.php	18679	0644	edit dl rm
class-wp-theme-install-list-table.php	15375	0644	edit dl rm
class-wp-themes-list-table.php	10166	0644	edit dl rm
class-wp-upgrader-skin.php	5164	0644	edit dl rm
class-wp-upgrader-skins.php	1477	0644	edit dl rm
class-wp-upgrader.php	35670	0644	edit dl rm
class-wp-users-list-table.php	17751	0644	edit dl rm
comment.php	6071	0644	edit dl rm
continents-cities.php	20750	0644	edit dl rm
credits.php	5551	0644	edit dl rm
dashboard.php	61250	0644	edit dl rm
deprecated.php	40595	0644	edit dl rm
edit-tag-messages.php	1437	0644	edit dl rm
export.php	23609	0644	edit dl rm
file.php	79821	0644	edit dl rm
image-edit.php	35172	0644	edit dl rm
image.php	34147	0644	edit dl rm
import.php	6697	0644	edit dl rm
list-table.php	3187	0644	edit dl rm
media.php	113186	0644	edit dl rm
menu.php	9141	0644	edit dl rm
meta-boxes.php	62556	0644	edit dl rm
misc.php	43022	0644	edit dl rm
ms-admin-filters.php	1370	0644	edit dl rm
ms-deprecated.php	3031	0644	edit dl rm
ms.php	33692	0644	edit dl rm
nav-menu.php	46094	0644	edit dl rm
network.php	24414	0644	edit dl rm
noop.php	1086	0644	edit dl rm
options.php	4108	0644	edit dl rm
plugin-install.php	34450	0644	edit dl rm
plugin.php	83171	0644	edit dl rm
post.php	74807	0644	edit dl rm
privacy-tools.php	27782	0644	edit dl rm
revision.php	15970	0644	edit dl rm
schema.php	41764	0644	edit dl rm
screen.php	6247	0644	edit dl rm
taxonomy.php	7953	0644	edit dl rm
template.php	90506	0644	edit dl rm
theme-install.php	6568	0644	edit dl rm
theme.php	34242	0644	edit dl rm
translation-install.php	8689	0644	edit dl rm
update-core.php	59133	0644	edit dl rm
update.php	28560	0644	edit dl rm
upgrade.php	104244	0644	edit dl rm
user.php	18436	0644	edit dl rm
widgets.php	10790	0644	edit dl rm

Edit: /home/altere25/berryglowbeauty.com/wp-admin/includes/class-custom-background.php (20782B)

<?php
/**
 * The custom background script.
 *
 * @package WordPress
 * @subpackage Administration
 */

/**
 * The custom background class.
 *
 * @since 3.0.0
 */
class Custom_Background {

/**
	 * Callback for administration header.
	 *
	 * @var callable
	 * @since 3.0.0
	 */
	public $admin_header_callback;

/**
	 * Callback for header div.
	 *
	 * @var callable
	 * @since 3.0.0
	 */
	public $admin_image_div_callback;

/**
	 * Used to trigger a success message when settings updated and set to true.
	 *
	 * @since 3.0.0
	 * @var bool
	 */
	private $updated;

/**
	 * Constructor - Register administration header callback.
	 *
	 * @since 3.0.0
	 * @param callable $admin_header_callback
	 * @param callable $admin_image_div_callback Optional custom image div output callback.
	 */
	public function __construct( $admin_header_callback = '', $admin_image_div_callback = '' ) {
		$this->admin_header_callback    = $admin_header_callback;
		$this->admin_image_div_callback = $admin_image_div_callback;

add_action( 'admin_menu', array( $this, 'init' ) );

add_action( 'wp_ajax_custom-background-add', array( $this, 'ajax_background_add' ) );

// Unused since 3.5.0.
		add_action( 'wp_ajax_set-background-image', array( $this, 'wp_set_background_image' ) );
	}

/**
	 * Set up the hooks for the Custom Background admin page.
	 *
	 * @since 3.0.0
	 */
	public function init() {
		$page = add_theme_page( __( 'Background' ), __( 'Background' ), 'edit_theme_options', 'custom-background', array( $this, 'admin_page' ) );
		if ( ! $page ) {
			return;
		}

add_action( "load-{$page}", array( $this, 'admin_load' ) );
		add_action( "load-{$page}", array( $this, 'take_action' ), 49 );
		add_action( "load-{$page}", array( $this, 'handle_upload' ), 49 );

if ( $this->admin_header_callback ) {
			add_action( "admin_head-{$page}", $this->admin_header_callback, 51 );
		}
	}

/**
	 * Set up the enqueue for the CSS & JavaScript files.
	 *
	 * @since 3.0.0
	 */
	public function admin_load() {
		get_current_screen()->add_help_tab(
			array(
				'id'      => 'overview',
				'title'   => __( 'Overview' ),
				'content' =>
					'<p>' . __( 'You can customize the look of your site without touching any of your theme&#8217;s code by using a custom background. Your background can be an image or a color.' ) . '</p>' .
					'<p>' . __( 'To use a background image, simply upload it or choose an image that has already been uploaded to your Media Library by clicking the &#8220;Choose Image&#8221; button. You can display a single instance of your image, or tile it to fill the screen. You can have your background fixed in place, so your site content moves on top of it, or you can have it scroll with your site.' ) . '</p>' .
					'<p>' . __( 'You can also choose a background color by clicking the Select Color button and either typing in a legitimate HTML hex value, e.g. &#8220;#ff0000&#8221; for red, or by choosing a color using the color picker.' ) . '</p>' .
					'<p>' . __( 'Don&#8217;t forget to click on the Save Changes button when you are finished.' ) . '</p>',
			)
		);

get_current_screen()->set_help_sidebar(
			'<p><strong>' . __( 'For more information:' ) . '</strong></p>' .
			'<p>' . __( '<a href="https://codex.wordpress.org/Appearance_Background_Screen">Documentation on Custom Background</a>' ) . '</p>' .
			'<p>' . __( '<a href="https://wordpress.org/support/">Support</a>' ) . '</p>'
		);

wp_enqueue_media();
		wp_enqueue_script( 'custom-background' );
		wp_enqueue_style( 'wp-color-picker' );
	}

/**
	 * Execute custom background modification.
	 *
	 * @since 3.0.0
	 */
	public function take_action() {
		if ( empty( $_POST ) ) {
			return;
		}

if ( isset( $_POST['reset-background'] ) ) {
			check_admin_referer( 'custom-background-reset', '_wpnonce-custom-background-reset' );
			remove_theme_mod( 'background_image' );
			remove_theme_mod( 'background_image_thumb' );
			$this->updated = true;
			return;
		}

if ( isset( $_POST['remove-background'] ) ) {
			// @TODO: Uploaded files are not removed here.
			check_admin_referer( 'custom-background-remove', '_wpnonce-custom-background-remove' );
			set_theme_mod( 'background_image', '' );
			set_theme_mod( 'background_image_thumb', '' );
			$this->updated = true;
			wp_safe_redirect( $_POST['_wp_http_referer'] );
			return;
		}

if ( isset( $_POST['background-preset'] ) ) {
			check_admin_referer( 'custom-background' );

if ( in_array( $_POST['background-preset'], array( 'default', 'fill', 'fit', 'repeat', 'custom' ), true ) ) {
				$preset = $_POST['background-preset'];
			} else {
				$preset = 'default';
			}

set_theme_mod( 'background_preset', $preset );
		}

if ( isset( $_POST['background-position'] ) ) {
			check_admin_referer( 'custom-background' );

$position = explode( ' ', $_POST['background-position'] );

if ( in_array( $position[0], array( 'left', 'center', 'right' ), true ) ) {
				$position_x = $position[0];
			} else {
				$position_x = 'left';
			}

if ( in_array( $position[1], array( 'top', 'center', 'bottom' ), true ) ) {
				$position_y = $position[1];
			} else {
				$position_y = 'top';
			}

set_theme_mod( 'background_position_x', $position_x );
			set_theme_mod( 'background_position_y', $position_y );
		}

if ( isset( $_POST['background-size'] ) ) {
			check_admin_referer( 'custom-background' );

if ( in_array( $_POST['background-size'], array( 'auto', 'contain', 'cover' ), true ) ) {
				$size = $_POST['background-size'];
			} else {
				$size = 'auto';
			}

set_theme_mod( 'background_size', $size );
		}

if ( isset( $_POST['background-repeat'] ) ) {
			check_admin_referer( 'custom-background' );

$repeat = $_POST['background-repeat'];

if ( 'no-repeat' !== $repeat ) {
				$repeat = 'repeat';
			}

set_theme_mod( 'background_repeat', $repeat );
		}

if ( isset( $_POST['background-attachment'] ) ) {
			check_admin_referer( 'custom-background' );

$attachment = $_POST['background-attachment'];

if ( 'fixed' !== $attachment ) {
				$attachment = 'scroll';
			}

set_theme_mod( 'background_attachment', $attachment );
		}

if ( isset( $_POST['background-color'] ) ) {
			check_admin_referer( 'custom-background' );
			$color = preg_replace( '/[^0-9a-fA-F]/', '', $_POST['background-color'] );
			if ( strlen( $color ) == 6 || strlen( $color ) == 3 ) {
				set_theme_mod( 'background_color', $color );
			} else {
				set_theme_mod( 'background_color', '' );
			}
		}

$this->updated = true;
	}

/**
	 * Display the custom background page.
	 *
	 * @since 3.0.0
	 */
	public function admin_page() {
		?>
<div class="wrap" id="custom-background">
<h1><?php _e( 'Custom Background' ); ?></h1>

<?php if ( current_user_can( 'customize' ) ) { ?>
<div class="notice notice-info hide-if-no-customize">
	<p>
			<?php
			printf(
				/* translators: %s: URL to background image configuration in Customizer. */
				__( 'You can now manage and live-preview Custom Backgrounds in the <a href="%s">Customizer</a>.' ),
				admin_url( 'customize.php?autofocus[control]=background_image' )
			);
			?>
	</p>
</div>
		<?php } ?>

<?php if ( ! empty( $this->updated ) ) { ?>
<div id="message" class="updated">
	<p>
			<?php
			/* translators: %s: Home URL. */
			printf( __( 'Background updated. <a href="%s">Visit your site</a> to see how it looks.' ), home_url( '/' ) );
			?>
	</p>
</div>
		<?php } ?>

<table class="form-table" role="presentation">
<tbody>
<tr>
<th scope="row"><?php _e( 'Preview' ); ?></th>
<td>
		<?php
		if ( $this->admin_image_div_callback ) {
			call_user_func( $this->admin_image_div_callback );
		} else {
			$background_styles = '';
			$bgcolor           = get_background_color();
			if ( $bgcolor ) {
				$background_styles .= 'background-color: #' . $bgcolor . ';';
			}

$background_image_thumb = get_background_image();
			if ( $background_image_thumb ) {
				$background_image_thumb = esc_url( set_url_scheme( get_theme_mod( 'background_image_thumb', str_replace( '%', '%%', $background_image_thumb ) ) ) );
				$background_position_x  = get_theme_mod( 'background_position_x', get_theme_support( 'custom-background', 'default-position-x' ) );
				$background_position_y  = get_theme_mod( 'background_position_y', get_theme_support( 'custom-background', 'default-position-y' ) );
				$background_size        = get_theme_mod( 'background_size', get_theme_support( 'custom-background', 'default-size' ) );
				$background_repeat      = get_theme_mod( 'background_repeat', get_theme_support( 'custom-background', 'default-repeat' ) );
				$background_attachment  = get_theme_mod( 'background_attachment', get_theme_support( 'custom-background', 'default-attachment' ) );

// Background-image URL must be single quote, see below.
				$background_styles .= " background-image: url('$background_image_thumb');"
				. " background-size: $background_size;"
				. " background-position: $background_position_x $background_position_y;"
				. " background-repeat: $background_repeat;"
				. " background-attachment: $background_attachment;";
			}
			?>
	<div id="custom-background-image" style="<?php echo $background_styles; ?>"><?php // must be double quote, see above ?>
			<?php if ( $background_image_thumb ) { ?>
		<img class="custom-background-image" src="<?php echo $background_image_thumb; ?>" style="visibility:hidden;" alt="" /><br />
		<img class="custom-background-image" src="<?php echo $background_image_thumb; ?>" style="visibility:hidden;" alt="" />
		<?php } ?>
	</div>
	<?php } ?>
</td>
</tr>

<?php if ( get_background_image() ) : ?>
<tr>
<th scope="row"><?php _e( 'Remove Image' ); ?></th>
<td>
<form method="post">
			<?php wp_nonce_field( 'custom-background-remove', '_wpnonce-custom-background-remove' ); ?>
			<?php submit_button( __( 'Remove Background Image' ), '', 'remove-background', false ); ?><br/>
			<?php _e( 'This will remove the background image. You will not be able to restore any customizations.' ); ?>
</form>
</td>
</tr>
		<?php endif; ?>

<?php $default_image = get_theme_support( 'custom-background', 'default-image' ); ?>
		<?php if ( $default_image && get_background_image() != $default_image ) : ?>
<tr>
<th scope="row"><?php _e( 'Restore Original Image' ); ?></th>
<td>
<form method="post">
			<?php wp_nonce_field( 'custom-background-reset', '_wpnonce-custom-background-reset' ); ?>
			<?php submit_button( __( 'Restore Original Image' ), '', 'reset-background', false ); ?><br/>
			<?php _e( 'This will restore the original background image. You will not be able to restore any customizations.' ); ?>
</form>
</td>
</tr>
		<?php endif; ?>

<?php if ( current_user_can( 'upload_files' ) ) : ?>
<tr>
<th scope="row"><?php _e( 'Select Image' ); ?></th>
<td><form enctype="multipart/form-data" id="upload-form" class="wp-upload-form" method="post">
	<p>
		<label for="upload"><?php _e( 'Choose an image from your computer:' ); ?></label><br />
		<input type="file" id="upload" name="import" />
		<input type="hidden" name="action" value="save" />
			<?php wp_nonce_field( 'custom-background-upload', '_wpnonce-custom-background-upload' ); ?>
			<?php submit_button( __( 'Upload' ), '', 'submit', false ); ?>
	</p>
	<p>
		<label for="choose-from-library-link"><?php _e( 'Or choose an image from your media library:' ); ?></label><br />
		<button id="choose-from-library-link" class="button"
			data-choose="<?php esc_attr_e( 'Choose a Background Image' ); ?>"
			data-update="<?php esc_attr_e( 'Set as background' ); ?>"><?php _e( 'Choose Image' ); ?></button>
	</p>
	</form>
</td>
</tr>
		<?php endif; ?>
</tbody>
</table>

<?php
			$background_position = sprintf(
				'%s %s',
				get_theme_mod( 'background_position_x', get_theme_support( 'custom-background', 'default-position-x' ) ),
				get_theme_mod( 'background_position_y', get_theme_support( 'custom-background', 'default-position-y' ) )
			);

$background_position_options = array(
				array(
					'left top'   => array(
						'label' => __( 'Top Left' ),
						'icon'  => 'dashicons dashicons-arrow-left-alt',
					),
					'center top' => array(
						'label' => __( 'Top' ),
						'icon'  => 'dashicons dashicons-arrow-up-alt',
					),
					'right top'  => array(
						'label' => __( 'Top Right' ),
						'icon'  => 'dashicons dashicons-arrow-right-alt',
					),
				),
				array(
					'left center'   => array(
						'label' => __( 'Left' ),
						'icon'  => 'dashicons dashicons-arrow-left-alt',
					),
					'center center' => array(
						'label' => __( 'Center' ),
						'icon'  => 'background-position-center-icon',
					),
					'right center'  => array(
						'label' => __( 'Right' ),
						'icon'  => 'dashicons dashicons-arrow-right-alt',
					),
				),
				array(
					'left bottom'   => array(
						'label' => __( 'Bottom Left' ),
						'icon'  => 'dashicons dashicons-arrow-left-alt',
					),
					'center bottom' => array(
						'label' => __( 'Bottom' ),
						'icon'  => 'dashicons dashicons-arrow-down-alt',
					),
					'right bottom'  => array(
						'label' => __( 'Bottom Right' ),
						'icon'  => 'dashicons dashicons-arrow-right-alt',
					),
				),
			);
			?>
<tr>
<th scope="row"><?php _e( 'Image Position' ); ?></th>
<td><fieldset><legend class="screen-reader-text"><span><?php _e( 'Image Position' ); ?></span></legend>
<div class="background-position-control">
			<?php foreach ( $background_position_options as $group ) : ?>
	<div class="button-group">
				<?php foreach ( $group as $value => $input ) : ?>
		<label>
			<input class="screen-reader-text" name="background-position" type="radio" value="<?php echo esc_attr( $value ); ?>"<?php checked( $value, $background_position ); ?>>
			<span class="button display-options position"><span class="<?php echo esc_attr( $input['icon'] ); ?>" aria-hidden="true"></span></span>
			<span class="screen-reader-text"><?php echo $input['label']; ?></span>
		</label>
	<?php endforeach; ?>
	</div>
<?php endforeach; ?>
</div>
</fieldset></td>
</tr>

<?php wp_nonce_field( 'custom-background' ); ?>
		<?php submit_button( null, 'primary', 'save-background-options' ); ?>
</form>

</div>
		<?php
	}

/**
	 * Handle an Image upload for the background image.
	 *
	 * @since 3.0.0
	 */
	public function handle_upload() {
		if ( empty( $_FILES ) ) {
			return;
		}

check_admin_referer( 'custom-background-upload', '_wpnonce-custom-background-upload' );
		$overrides = array( 'test_form' => false );

$uploaded_file = $_FILES['import'];
		$wp_filetype   = wp_check_filetype_and_ext( $uploaded_file['tmp_name'], $uploaded_file['name'] );
		if ( ! wp_match_mime_types( 'image', $wp_filetype['type'] ) ) {
			wp_die( __( 'The uploaded file is not a valid image. Please try again.' ) );
		}

$file = wp_handle_upload( $uploaded_file, $overrides );

if ( isset( $file['error'] ) ) {
			wp_die( $file['error'] );
		}

$url      = $file['url'];
		$type     = $file['type'];
		$file     = $file['file'];
		$filename = wp_basename( $file );

// Construct the object array
		$object = array(
			'post_title'     => $filename,
			'post_content'   => $url,
			'post_mime_type' => $type,
			'guid'           => $url,
			'context'        => 'custom-background',
		);

// Save the data
		$id = wp_insert_attachment( $object, $file );

// Add the meta-data
		wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $file ) );
		update_post_meta( $id, '_wp_attachment_is_custom_background', get_option( 'stylesheet' ) );

set_theme_mod( 'background_image', esc_url_raw( $url ) );

$thumbnail = wp_get_attachment_image_src( $id, 'thumbnail' );
		set_theme_mod( 'background_image_thumb', esc_url_raw( $thumbnail[0] ) );

/** This action is documented in wp-admin/includes/class-custom-image-header.php */
		do_action( 'wp_create_file_in_uploads', $file, $id ); // For replication
		$this->updated = true;
	}

/**
	 * Ajax handler for adding custom background context to an attachment.
	 *
	 * Triggers when the user adds a new background image from the
	 * Media Manager.
	 *
	 * @since 4.1.0
	 */
	public function ajax_background_add() {
		check_ajax_referer( 'background-add', 'nonce' );

if ( ! current_user_can( 'edit_theme_options' ) ) {
			wp_send_json_error();
		}

$attachment_id = absint( $_POST['attachment_id'] );
		if ( $attachment_id < 1 ) {
			wp_send_json_error();
		}

update_post_meta( $attachment_id, '_wp_attachment_is_custom_background', get_stylesheet() );

wp_send_json_success();
	}

/**
	 * @since 3.4.0
	 * @deprecated 3.5.0
	 *
	 * @param array $form_fields
	 * @return array $form_fields
	 */
	public function attachment_fields_to_edit( $form_fields ) {
		return $form_fields;
	}

/**
	 * @since 3.4.0
	 * @deprecated 3.5.0
	 *
	 * @param array $tabs
	 * @return array $tabs
	 */
	public function filter_upload_tabs( $tabs ) {
		return $tabs;
	}

/**
	 * @since 3.4.0
	 * @deprecated 3.5.0
	 */
	public function wp_set_background_image() {
		check_ajax_referer( 'custom-background' );

if ( ! current_user_can( 'edit_theme_options' ) || ! isset( $_POST['attachment_id'] ) ) {
			exit;
		}

$attachment_id = absint( $_POST['attachment_id'] );

$sizes = array_keys(
			/** This filter is documented in wp-admin/includes/media.php */
			apply_filters(
				'image_size_names_choose',
				array(
					'thumbnail' => __( 'Thumbnail' ),
					'medium'    => __( 'Medium' ),
					'large'     => __( 'Large' ),
					'full'      => __( 'Full Size' ),
				)
			)
		);

$size = 'thumbnail';
		if ( in_array( $_POST['size'], $sizes ) ) {
			$size = esc_attr( $_POST['size'] );
		}

update_post_meta( $attachment_id, '_wp_attachment_is_custom_background', get_option( 'stylesheet' ) );

$url       = wp_get_attachment_image_src( $attachment_id, $size );
		$thumbnail = wp_get_attachment_image_src( $attachment_id, 'thumbnail' );
		set_theme_mod( 'background_image', esc_url_raw( $url[0] ) );
		set_theme_mod( 'background_image_thumb', esc_url_raw( $thumbnail[0] ) );
		exit;
	}
}

cmd: