Or like in Threema: 3 green dots (traffic light system)
As this is DC this could be three triangles or prisms
(someone has done a suggestion for a new DC icon using such a shape)
ddd
4 states “possible/thinkable”:
ddd (no color): not any message sent yet
ddd (1 d red): not encrypted (normal)
ddd (2 d yellow): encrypted
ddd (3 d green) : encrypted + verified
Much better than the simply uncolored word “Verified Contact” (Android),
in the profile. Write it at least in blue.
Already better is the blue tick(iOS) in the profile.
Already both have a a blue tick under add new contact.
Would be really helpful or rather mandatory
that it is shown in title bar of the current chat (and maybe even in the chat/contact list)
(for the reason of visibility/hint/reminder)
AND
that the status changes when something has changed.
PS.
see maybe also 1-14-x release feedbacks