-**New Issue from Selection** in the editor's context menu: the selected lines (or the current one) quoted in a new issue with a permalink to them on the hub. A TODO or FIXME line suggests the title, and the issue's number can be written back into it as `TODO(#12)`.
15
- File links on the hub can carry a line range (`#L3-L7`).
-Type `#` in the Oxygen commit box or a review comment to pick an issue or proposal by number or title, and `@` to mention someone who has opened or been assigned one.
20
- Hover a `#N` to see what it is: kind, state, title and author, with a link to the hub.
-A bell in the status bar with your unread notifications across every hub you are signed in to, and a message when new ones arrive (`oxygenhub.announceNotifications`).
25
-**Open Inbox**: your notifications, unread first; pick one to mark it read and open it, in the editor for proposals and issues of your workspace's repositories. Mark all as read from the top of the list.
-Proposals expand to their changed files. Click one to open it in VS Code's diff editor: the target's state against the projected state, straight from the hub, no checkout needed.
31
-**View Changes** on a proposal (inline button, or in the detail) opens every file in one multi-file diff editor.
32
- Review threads appear in those diff editors on the projected side, and new comments there are anchored to the line's atom on the hub.
-Fix: the dependency on the Oxygen extension named the wrong id (`andymccall.oxygen-vscode` instead of `oxygen.oxygen-vscode`), so VS Code never activated this extension and Sign in did nothing.
38
- The activity bar shows the Oxygen mark itself rather than a filled square.