Hi,
A couple of things:
Yes, you can turn off the highlight for all of the objects with a single line of script:
app.runtimeHighlight = false;
You would place this in the docReady event of the root node (normalled called "form1").
You can also change the default colour of the highlight, but this will be applied to all fields when the highlight is turned on.
See here for an example: http://assure.ly/jiZ6tn.
So far the solutions are relatively easy to implement. You can go for a more involved solution, but it may not be worth the extra work in implementing: http://assure.ly/h8ZLr5
Hope that helps,
Niall