Yes you can control the highlight color. It is an acroForm setting and not in XFA but you can access it through the XFA side. the command you want is:
app.runtimeHighlightColor = "RGB value"
If the field is mark as required then it will be highlighted in Red by default.
10-09-2008
Hi,
Thank you Paul. Is there a document or web site that have reference to the acroForm commands, properties or setting?
10-09-2008
Hi,
I tried setting app.runtimeHighlightColor=[RGB,0.22,0.22,0.22] , it changes the color of the field value area. How can I change color of the red box for those field that is set to required. Thanks.
There is a setting in the properties but it is not exposed in the Javascript (that I can see anyways). I got those commands in the Acrobat JavaScript reference.
11-09-2008
Does it means that the setting of the red box for those required field cannot be set in LC designer? Thanks.