The module installer service. Type:

system_sort_modules_by_info_name($a, $b) Array sorting callback; sorts modules by their name.

Default theme implementation of a container used to wrap child elements. Used for grouped form items. Can also be used as a theme wrapper for

System Manager Service. Type:

Default theme implementation for displaying a tablesort indicator. Available variables: style:

public DateFormatEditForm::form(array $form, FormStateInterface

system_theme_suggestions_maintenance_page(array $variables) Implements

Optional option on forms and settings File core/modules/system/

Default theme implementation for the Appearance page. Available variables: attributes:

Default theme implementation for a list of maintenance tasks to perform. Available variables: tasks: