hook_extension() Declare a template file extension to be used with a theme engine. This
hook_theme_suggestions_alter(array &$suggestions, array $variables, $hook) Alters named suggestions for
hook_js_settings_alter(array &$settings, \Drupal\Core\Asset\AttachedAssetsInterface $assets) Perform necessary
hook_theme_suggestions_HOOK_alter(array &$suggestions, array $variables) Alters named suggestions for a
hook_preprocess_HOOK(&$variables) Preprocess theme variables for a specific theme hook.
hook_page_bottom(array &$page_bottom) Add a renderable array to the bottom of the page.
Page 3 of 3