Change requests, requirements, tasks, and topics that you have not read display in boldface type if you are the user responsible for the item, or if you are the recipient of the topic. After you have reviewed the item properties, the boldface type is replaced by regular type.
To reread all the items on a certain subject, it is sometimes convenient to mark all of the items unread to ensure that you do not miss any. You can also mark an entire requirement, task, or topic tree as unread.
The items are marked as specified, and the type style changes accordingly.