-**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)`.
11
- 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.
16
- 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`).
21
-**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.
22
- Needs Oxygenhub with the notifications API (2026-09-28) and a token with `user:read`.
-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.
27
-**View Changes** on a proposal (inline button, or in the detail) opens every file in one multi-file diff editor.
28
- 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.
29
- Needs Oxygenhub with the proposal files and content API (2026-09-28).
-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.
34
- The activity bar shows the Oxygen mark itself rather than a filled square.