wp-includes/class-wp-theme-json-resolver.php:160Returns core's origin config.
WP_Theme_JSONOne hook fires while WP_Theme_JSON_Resolver::get_core_data() runs, in this order:
Filters the default data provided by WordPress for global styles & settings.
public static function get_core_data() { if ( null !== static::$core && static::has_same_registered_blocks( 'core' ) ) { return static::$core; } $config = static::read_json_file( __DIR__ . '/theme.json' ); $config = static::translate( $config ); /** * Filters the default data provided by WordPress for global styles & settings. * * @since 6.1.0 * * @param WP_Theme_JSON_Data $theme_json Class to access and update the underlying data. */ $theme_json = apply_filters( 'wp_theme_json_data_default', new WP_Theme_JSON_Data( $config, 'default' ) ); /* * Backward compatibility for extenders returning a WP_Theme_JSON_Data * compatible class that is not a WP_Theme_JSON_Data object. */ if ( $theme_json instanceof WP_Theme_JSON_Data ) { static::$core = $theme_json->get_theme_json(); } else { $config = $theme_json->get_data(); static::$core = new WP_Theme_JSON( $config, 'default' ); } return static::$core; }Introduced in 5.8.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-theme-json-resolver.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.