https://www.drupal.org/node/2646620
$variables['theme_path'] = base_path() . $variables['directory'];
<img src="{{ theme_path }}/images/slides/test-slide-1.png" />
<img src="/{{ directory }}/images/slides/test-slide-1.png" />
<img src="{{ directory }}/images/slides/test-slide-1.png" alt="test-slide-1" width="1200" height="675" />
https://www.drupal.org/node/2630648
`/**
- Implements hook_preprocess_HOOK() for html.html.twig.`
*/
function slznecesty_preprocess_html(array &$variables) {
$current_path = \Drupal::service('path.current')->getPath();
if($current_path == '/node/9') {
$variables['attributes']['class'] = 'home-page';
}
}