drupalcampbristol/web/themes/dcb2017/dcb2017.theme

<?php

/**
 * Theming stuff goes here!
 */

/**
 * Implements template_preprocess_html().
 */
function dcb2017_preprocess_html(&$variables) {
  if (\Drupal::service('path.matcher')->isFrontPage()) {
    $site_config = \Drupal::config('system.site');
    $variables['head_title'] = $site_config->get('name');
  }
}

/**
 * Implements template_preprocess_node().
 */
function dcb2017_preprocess_node(&$variables) {

}