custom_elements-8.x-2.x-dev/config/schema/custom_elements.schema.yml

custom_elements.settings:
  type: config_object
  mapping:
    markup_style:
      type: string
      label: 'Markup style'
    json_format:
      type: string
      label: 'JSON serialization format'
    default_render_variant:
      type: string
      label: 'Default render variant'

# Overview configuration information for custom element display mode.
custom_elements.entity_ce_display.*.*.*:
  type: config_entity
  label: 'Entity custom element display'
  mapping:
    id:
      type: string
      label: 'ID'
    targetEntityType:
      type: string
      label: 'Target entity type'
    bundle:
      type: string
      label: 'Bundle'
    mode:
      type: string
      label: 'View or form mode machine name'
    useLayoutBuilder:
      type: bool
      label: 'Build custom element using layout (if enabled in appropriate display).'
    forceAutoProcessing:
      type: bool
      label: 'Build custom element using processors instead of field config.'
    customElementName:
      type: string
      label: 'Custom element name'
    content:
      type: sequence
      label: 'Field custom element formatters'
      sequence:
        type: mapping
        label: 'Field custom element formatter'
        mapping:
          formatter:
            type: string
            label: 'Custom element formatter ID'
          field_name:
            type: string
            label: 'Name of the entity field'
          is_slot:
            type: bool
            label: 'is Slot'
          weight:
            type: integer
            label: 'Weight'
          configuration:
            type: custom_elements.field_formatter.configuration.[%parent.formatter]
            label: 'Settings'

# Default schema for entity display field with undefined type.
custom_elements.field_formatter.configuration.*:
  type: mapping

# Schema for core field formatter plugin.
custom_elements.field_formatter.configuration.field:*:
  type: mapping
  label: 'Field formatter settings'
  mapping:
    type:
      type: string
      label: 'Formatter type machine name'
    settings:
      type: field.formatter.settings.[%parent.type]
      label: 'Settings'
    third_party_settings:
      type: sequence
      label: 'Third party settings'
      sequence:
        type: field.formatter.third_party.[%key]