All classes that implement WidgetSelectorInterface in Entity Browser 8.2
- class \Drupal\entity_browser\Plugin\EntityBrowser\WidgetSelector\DropDown
- class \Drupal\entity_browser\Plugin\EntityBrowser\WidgetSelector\Single
- class \Drupal\entity_browser\Plugin\EntityBrowser\WidgetSelector\Tabs
- class \Drupal\entity_browser\WidgetSelectorBase implements WidgetSelectorInterface uses PluginConfigurationFormTrait