seo_starter_kit-8.x-1.0-alpha2/seo_starter_kit.install

<?php

/**
 * @file
 * Install, update and uninstall functions for the seo installation profile.
 */

/**
 * Implements hook_install().
 *
 * Perform actions to set up the site for seo profile.
 *
 * @see system_install()
 */
function seo_starter_kit_install() {
  // Standard profile.
  include_once DRUPAL_ROOT . '/core/profiles/standard/standard.install';
  standard_install();
  // Set default themes.
  \Drupal::configFactory()
    ->getEditable('system.theme')
    ->set('default', 'bartik')
    ->set('admin', 'seven')
    ->save();
}