service theme.negotiator.admin_theme.crm_core in CRM Core 8.3

class: Drupal\crm_core\Theme\CrmCoreAdminNegotiator
arguments:
  - '@current_user'
  - '@config.factory'
  - '@entity_type.manager'
  - '@router.admin_context'
tags:
  - { name: theme_negotiator, priority: -39 }