v1/web/modules/contrib/layout_builder_blocks/layout_builder_blocks.routing.yml

layout_builder_blocks.styles:
  path: '/admin/config/layout-builder-blocks/styles'
  defaults:
    _form: '\Drupal\layout_builder_blocks\Form\StylesForm'
    _title: 'Layout Builder Blocks Styles'
  requirements:
    _permission: 'configure bootstrap layout builder'