When you go to the 'Countries' tab on Android you can select from "All, Secure Core, P2P & Tor" options. If you select Tor, one of the options is "Fastest Country." When you connect to that, there is no indication that you're connected to a Tor server unless you either open the app or manually check your IP address.

If you use the widget on the home screen there is nothing differentiating a regular "Fastest Country" over "Fastest Country via Tor" either in the widget or the persistent notification. In regards to the widget, both use the same lightning icon. You could add text below it to indicate which one is the Tor connection. The UI doesn't make it obvious, you need to open the app which in my opinion, defeats the purpose of the widget. You could also change it to show the onion logo like when selecting a country in the first place.

In regards to the persistent notification, a "Connected to (Country) via Tor" would be appreciated as well.

I know it's not as critical as other suggestions, but it would certainly be a welcomes QoL update. Thank you.