log: description: Create a custom entry in your logbook. fields: name: description: Custom name for an entity, can be referenced with entity_id example: "Kitchen" message: description: Message of the custom logbook entry example: "is being used" entity_id: description: Entity to reference in custom logbook entry [Optional] example: "light.kitchen" domain: description: Icon of domain to display in custom logbook entry [Optional] example: "light"