WP_REST_Themes_Controller::prepare_theme_support( mixed $support, array $args, string $feature, WP_REST_Request $request ): mixed

431	protected function prepare_theme_support( $support, $args, $feature, $request ) {432		$schema = $args['show_in_rest']['schema'];433 434		if ( 'boolean' === $schema['type'] ) {435			return true;436		}437 438		if ( is_array( $support ) && ! $args['variadic'] ) {439			$support = $support[0];440		}441 442		return rest_sanitize_value_from_schema( $support, $schema );443	}