Actually, there is a way to override this setting using code, but it should
be used with care.
If you embed this code in your file the highlight fields option will be
disabled:
app.runtimeHighlight=false;
HOWEVER, this will affect not just your file but the entire application, so
all other files as well. It is usually considered "rude" for a script (or
application) to make such changes without at least informing the user about
it, or (better yet) asking for their permission before making the change.