In the Drupal 7 version of AddThis the block can be configured based on any FieldFormatter that is defined for AddThis. With the changes in D8, I was not able to reproduce this functionality.
@TODO:
Investigate the best way to make the block extensible by future contrib/custom modules.
Can we use the FieldFormatters in the same way that D7 did?
Is there a better option to handle the Field/Block displays to make them extensible by external modules? (Ie. Controllers, ??)
In the Drupal 7 version of AddThis the block can be configured based on any FieldFormatter that is defined for AddThis. With the changes in D8, I was not able to reproduce this functionality.
@TODO: