hook_system_themes_page_alter(&$theme_groups) Alters theme operation links.

system_authorized_batch_process() Use authorize.php to run

Default theme implementation to display a region. Available variables: content: The content

public SystemManager::listRequirements()

Configure file system settings for this site. Hierarchy class \Drupal\Core\Form\

public Action::isConfigurable() Returns

system_block_view_system_main_block_alter(array &$build, BlockPluginInterface $block) Implements

public SystemManager::checkRequirements()

The date formatter service. Type:

template_preprocess_admin_page(&$variables) Prepares variables for administrative index page templates