is a low-level construct which is formatted as boxes without further interpretation.
- When typeset, RawBoxes[boxes] inserts boxes verbatim into the resulting box structure, to be rendered by the front end.
- RawBoxes[boxes] performs no validation of boxes before inserting them.
- If the front end determines that a given box structure is invalid, it may display the result with an error indicator.
Introduced in 2007