commerce-8.x-2.8/modules/order/commerce_order.commerce_adjustment_types.yml

custom:
  label: 'Custom'
  singular_label: 'custom adjustment'
  plural_label: 'custom adjustments'
  has_ui: true
  weight: 10

fee:
  label: 'Fee'
  singular_label: 'fee'
  plural_label: 'fees'
  has_ui: true
  weight: 70

promotion:
  label: 'Promotion'
  singular_label: 'promotion'
  plural_label: 'promotions'
  has_ui: true
  weight: 0

tax:
  label: 'Tax'
  singular_label: 'tax'
  plural_label: 'taxes'
  has_ui: true
  weight: 50