block.admin_edit:
  title: 'Configure block'
  route_name: block.admin_edit
  tab_root_id: block.admin_edit

# Per theme block layout pages.
block.admin_display:
  title: 'Block Layout'
  route_name: block.admin_display
  tab_root_id: block.admin_display
block.admin_display_theme:
  title: 'Block Layout'
  route_name: block.admin_display_theme
  tab_root_id: block.admin_display
  tab_parent_id: block.admin_display
  derivative: 'Drupal\block\Plugin\Derivative\ThemeLocalTask'