DuckDuckGo & DuckDuckGo Onion display on differently in about:tor screen and on address bar
If you modify your search settings in Tor Browser to use DuckDuckGo's onion service rather than clearweb service searches from the address bar will use DuckDuckGo's onion, however if you search from about:tor page it still uses the clearweb service. It's not a huge issue considering you connect with Tor and HTTPS anyways but it'd be a nice little thing to fix for UX and Consistency purposes.
Trac:
Username: nsuchy