skinr-8.x-2.0-alpha2/skinr_ui/skinr_ui.links.menu.yml

skinr_ui.list:
  title: 'Skinr'
  parent: system.admin_structure
  description: 'Manage your skin configurations and import/export skin configurations.'
  route_name: skinr_ui.list

skinr_ui.library:
  title: 'Library'
  parent: skinr_ui.list
  description: 'Manage what skins are available when configuring the way your site looks.'
  route_name: skinr_ui.library