Your browser tabs tell themselves apart

Work in this portal for an hour and you have eight tabs open. Until now all eight wore the same portal favicon, and the tab strip narrowed each title to two or three words — so finding the thread you were just in meant clicking through them.

Each of those pages already had a mark of its own. The portal drew it in the tree, in menus, on every card. The browser tab was the one place it never reached.

Now it does. A node page publishes its own icon to the tab, and it is the same icon the app shows you everywhere else: the node's own, else the glyph of its type — a document for a page, a chat bubble for a thread, a robot for an agent — and for a thread, the identicon unique to it. Nothing is invented for the tab; if the app shows a mark for a page, that is the mark the tab shows.

It follows you as you navigate. The icon is resolved from the same page context that sets the tab title, so it swaps the moment you move to another node rather than only on a fresh page load — and it applies to every page you can see, not just the public ones that link previews already covered.

One limitation worth naming: Safari began supporting scalable tab icons in Safari 26. On Safari 18 and older the tab keeps the portal favicon exactly as before — nothing gets worse there, it just does not get better.