Great, good to hear!
The current version of Ditty doesn’t install default templates anymore (Layouts or Displays). Each of the item types do have their own “default” layout, but they get applied automatically as custom layouts. These have been simplified a bit from the my initial default layouts that were installed as templates. You can reset an item’s layout to it’s default by opening the Layout screen, clicking Customize, and then Reset to Default Layout in the top right of the next screen.
If you have existing templates from another site that you want to re-use, you can export them and import into the new site. Let me know if this helps or if you still have questions.