widget_engine-8.x-1.2/config/schema/widget_type.schema.yml

widget_engine.widget_type.*:
  type: config_entity
  label: 'Widget type config'
  mapping:
    id:
      type: string
      label: 'ID'
    label:
      type: label
      label: 'Label'
    uuid:
      type: string

field.widget.settings.widget_reference_ief_complex:
  type: mapping
  label: 'Inline entity reference display format settings'
  mapping:
    form_mode:
      type: string
      label: "Form mode"
    override_labels:
      type: boolean
      label: "Override labels"
    label_singular:
      type: string
      label: "Label (singular)"
    label_plural:
      type: string
      label: "Label (plural)"
    allow_new:
      type: boolean
      label: "Allow new"
    allow_existing:
      type: boolean
      label: "Allow existing"
    allow_asymmetric_translation:
      type: boolean
      label: "Allow asymmetric translation"
    match_operator:
      type: string
      label: "Match operator"