ui_icons-1.0.x-dev/modules/ui_icons_field/modules/ui_icons_field_link_attributes/config/schema/ui_icons_field_link_attributes.schema.yml

field.widget.settings.icon_link_attributes_widget:
  type: field.widget.settings.icon_link_widget
  label: 'Icon link attributes widget settings'
  constraints:
    FullyValidatable: ~
  mapping:
    # @see link_attributes/config/schema/link_attributes.schema.yml
    enabled_attributes:
      type: sequence
      sequence:
        type: boolean
        label: 'Enabled'
    widget_default_open:
      type: string
      label: 'Widget expand behavior'