11 classes are annotated with ExtraFieldDisplay in Extra Field 8

AllNodeTypesTest in tests/extra_field_test/src/Plugin/ExtraField/Display/AllNodeTypesTest.php

Extra field Display for all node types.

EmptyFormattedFieldTest in tests/extra_field_test/src/Plugin/ExtraField/Display/EmptyFormattedFieldTest.php

Extra field Display for a field without content.

ExampleAllNodes in modules/extra_field_example/src/Plugin/ExtraField/Display/ExampleAllNodes.php

Example Extra field Display.

ExampleArticle in modules/extra_field_example/src/Plugin/ExtraField/Display/ExampleArticle.php

Example Extra field Display.

ExampleFormattedField in modules/extra_field_example/src/Plugin/ExtraField/Display/ExampleFormattedField.php

Example Extra field with formatted output.

ExampleMultilingualField in modules/extra_field_example/src/Plugin/ExtraField/Display/ExampleMultilingualField.php

Example Extra field Display.

ExampleWithDependencyInjection in modules/extra_field_example/src/Plugin/ExtraField/Display/ExampleWithDependencyInjection.php

Example Extra field Display.

MultipleItemsFieldTest in tests/extra_field_test/src/Plugin/ExtraField/Display/MultipleItemsFieldTest.php

Extra field Display for a field with multiple items output.

MultipleItemsFieldWithCacheDependencyTest in tests/extra_field_test/src/Plugin/ExtraField/Display/MultipleItemsFieldWithCacheDependencyTest.php

Extra field Display for a field with multiple items output.

OneNodeTypeTest in tests/extra_field_test/src/Plugin/ExtraField/Display/OneNodeTypeTest.php

Extra field Display for one node type.

SingleTextFieldTest in tests/extra_field_test/src/Plugin/ExtraField/Display/SingleTextFieldTest.php

Extra field Display for a field with single item output.