abstract protected EntityDisplayFormBase::thirdPartySettingsForm(PluginSettingsInterface $plugin, FieldDefinitionInterface $field_definition, array $form, FormStateInterface $form_state)
Adds the widget or formatter third party settings forms.
Parameters
\Drupal\Core\Field\PluginSettingsInterface $plugin: The widget or formatter.
\Drupal\Core\Field\FieldDefinitionInterface $field_definition: The field definition.
array $form: The (entire) configuration form array.
\Drupal\Core\Form\FormStateIn