# Type alias FrameOpenReason

The different reasons why the frame was opened:

- `OPEN_ADDON`: The frame was opened because the add-on was selected in the
  activities panel.

- `START_ACTIVITY`: The frame was opened because the local user started an
  activity.

- `JOIN_ACTIVITY`: The frame was opened because the user joined an activity
  started by another user.

## Signature

    type FrameOpenReason =
      | 'UNKNOWN'
      | 'OPEN_ADDON'
      | 'START_ACTIVITY'
      | 'JOIN_ACTIVITY';