Yes, it is the date format option. However, I think things have drifted off your original question. Date format means how the date is organized--for instance do you want 12 FEB 2010 or 2/12/10, etc. Things like font size and color are CSS items.
The best approach to solving these CSS issues is to capture the HTML of the page and look at the HTML tags around the item you want to style. If there are no useful ones you will have to add some tags to your scripts. If there are, then you need to be sure that the CSS properly styles those tags.