Default theme implementation to display a Drupal installation page. All available variables are mirrored in page.html.twig. Some may be blank

Default theme implementation for a feed icon. Available variables: url: An internal system

Default theme implementation for a dropbutton wrapper. Available variables: children:

Default theme implementation for a set of indentation divs. These <div> tags are used for drag and drop tables.

Default theme implementation for a branding block. Each branding element variable (logo, name, slogan) is only available if enabled in the block

Default theme implementation to display a menu. Available variables: menu_name: The machine

Default theme implementation for an administrative block. Available variables: block:

Default theme implementation for an 'input' #type form element. Available variables: attributes:

Default theme implementation to display a single page. The doctype, html, head and body tags are not in this template. Instead they can be found

Default theme implementation for confirm form. By default this does not alter the appearance of a form at all, but is provided as a convenience