wp-includes/class-wp-customize-panel.php:374data JS object; export custom variables by overriding WP_Customize_Panel::json(). protected function content_template() { ?> <li class="panel-meta customize-info accordion-section <# if ( ! data.description ) { #> cannot-expand<# } #>"> <button class="customize-panel-back" tabindex="-1"><span class="screen-reader-text"> <?php /* translators: Hidden accessibility text. */ _e( 'Back' ); ?> </span></button> <div class="accordion-section-title"> <span class="preview-notice"> <?php /* translators: %s: The site/panel title in the Customizer. */ printf( __( 'You are customizing %s' ), '<strong class="panel-title">{{ data.title }}</strong>' ); ?> </span> <# if ( data.description ) { #> <button type="button" class="customize-help-toggle dashicons dashicons-editor-help" aria-expanded="false"><span class="screen-reader-text"> <?php /* translators: Hidden accessibility text. */ _e( 'Help' ); ?> </span></button> <# } #> </div> <# if ( data.description ) { #> <div class="description customize-panel-description"> {{{ data.description }}} </div> <# } #> <div class="customize-control-notifications-container"></div> </li> <?php }Introduced in 4.3.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-customize-panel.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.