function set_breadcrumbs() {
  \register_rest_route(
    'genesis/v1',
    '/breadcrumbs',
    [
      'methods'             => 'PUT',
      'callback'            => function( $request ) {
        $types           = $request->get_json_params();
        $genesis_options = get_option( GENESIS_SETTINGS_FIELD );

        foreach ( $types as $type => $value ) {
          // Prevent updates of non-breadcrumb options via this endpoint.
          if ( strpos( $type, 'breadcrumb_' ) !== 0 ) {
            continue;
          }

          $genesis_options[ $type ] = $value;
        }

        update_option( GENESIS_SETTINGS_FIELD, $genesis_options );

        return \genesis_breadcrumb_options_enabled();

      },
      'permission_callback' => function() {
        return current_user_can( 'edit_theme_options' );
      },
    ]
  );
}