My experience with continuous forms, is that aside from data, every element of the form is duplicated for all records in the form. Hence any change to size, color, graphics or anything like that, that is data dependent will be the same.
It's pretty frustrating, and I would love to proved wrong... The closest solution I have found is allowing text boxes within the form to be scrollable.
This is one of the few area's where Access just isn't as flexible as a Web App or other programming languages.