ThemeNegotiatorInterface

class \Drupal\Core\Theme\AjaxBasePageNegotiator implements \Drupal\Core\Theme\ThemeNegotiatorInterface
class \Drupal\Core\Theme\DefaultNegotiator implements \Drupal\Core\Theme\ThemeNegotiatorInterface
class \Drupal\Core\Theme\ThemeNegotiator implements \Drupal\Core\Theme\ThemeNegotiatorInterface
class \Drupal\block\Theme\AdminDemoNegotiator implements \Drupal\Core\Theme\ThemeNegotiatorInterface
class \Drupal\menu_test\Theme\TestThemeNegotiator implements \Drupal\Core\Theme\ThemeNegotiatorInterface
class \Drupal\system\Theme\BatchNegotiator implements \Drupal\Core\Theme\ThemeNegotiatorInterface
class \Drupal\system\Theme\DbUpdateNegotiator implements \Drupal\Core\Theme\ThemeNegotiatorInterface
class \Drupal\theme_test\Theme\CustomThemeNegotiator implements \Drupal\Core\Theme\ThemeNegotiatorInterface
class \Drupal\theme_test\Theme\HighPriorityThemeNegotiator implements \Drupal\Core\Theme\ThemeNegotiatorInterface
class \Drupal\user\Theme\AdminNegotiator implements \Drupal\Core\Theme\ThemeNegotiatorInterface uses \Drupal\Core\DependencyInjection\DeprecatedServicePropertyTrait

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