subtheme - Load css to front page only

Hi @senzaesclusiva,

I've found one solution by myself.

1) Add a library to bootstrap_barrio_subtheme.libraries.yml

# Custom front page
custom_front_page:
  css:
    theme:
      css/front.css: { weight: 1000 }

2) Use hook_page_attachments_alter in .theme file

/**
 * Implements hook_page_attachments_alter().
 */
function bootstrap_barrio_subtheme_page_attachments_alter(array &$page) {
  if (\Drupal::service('path.matcher')->isFrontPage()) {
    $page['#attached']['library'][] = 'bootstrap_barrio_subtheme/custom_front_page';
  }
}

Now it's working fine for the front page only.

Thanks

Many thanks @krunalunadkat for your replay and nice solution