It seems there are some text codes for things that either are still not known what they refer to, or I missed it somewhere along the way.
I don't have an itemized list of them but they can easily be seen in FF4kster by going into the dialogue editor and seeing which messages come up with something messed up (e.g. "Found [||]!"). Granted, for that example, it's pretty obvious that it's referring to the treasure contents. But what happens if I use that code in a message that isn't related to a treasure box? Also I seem to recall some of the codes used in battle messages can have the same code mean different things at different times.
It would be great to have a list of all the codes and what they do, or as close as we can get, so that I can get the dialogue editor displaying the information a little better.