Per our previous 15 years experience with a Road Trek we don't use the large dinette for anything but a bed that we leave as a bed. For that reason, when we re-cushioned our
Boler we went to a three piece 5" foam arrangement covered in removable white cotton-poly. The three pieces makes for easy removal and easier access to the storage underneath.
Our front, smaller, dinette is cushioned with some flare and colour. We chose not to use any piping.