The active tab is highlighted below, the heading says chat or email, and the new email icon in the email tab could be an envelope icon, not the normal iOS icon for new messages. By the way, I also forgot to remove the green checkmarks, but one could just leave them. Seriously, anyone who despite alle this, still confuses unencrypted chats with encrypted ones is beyond help.
I’ve been using DC for almost five years and have never confused unencrypted chats with encrypted ones. What can happen more easily now is accidentally sending an email to the wrong person.
For me, the main selling point of DC was the possibility to chat with people who don’t have it. Unfortunately, you couldn’t set avatars for these contacts, but at least there were character avatars and a workaround with emojis in the nickname, which were then displayed as avatars. In DC-Android it was even possible to import pictures from the system address book. These weren’t saved in the backup and thus couldn’t be transferred to other devices.
I once suggested being able to set your own avatars for non-DC contacts:
There are also a few other minor issues, but I always hoped they would be resolved at some point. Since then, the situation hasn’t improved; in fact, it’s gotten worse. Since I have quite a few non-DC contacts, it might not even make sense to continue using DC at all.