farm-2.x-dev/modules/core/ui/location/farm_ui_location.install

<?php

/**
 * @file
 * Install, update and uninstall functions for the farm_ui_location module.
 */

/**
 * Implements hook_install().
 */
function farm_ui_location_install() {

  // Use light mode for inspire tree.
  \Drupal::configFactory()->getEditable('inspire_tree.settings')->set('mode', 'light')->save();
}