The Banner Style of the Print Preview

The print preview header is controlled by jquery-ui-custom.css (found in \SISWebMap9.0\css\cadcorp-theme), the header displayed here will be the same as the headers for the map.aspx and the wmadm.aspx page:

ui-widget-header {
	border:   0px solid #0065a2;
	/* Original solid blue header, created by theme roller */
	/* background: #0065a2 url("images/ui-bg_flat_0_0065a2_40x100.png") 50% 50% repeat-x; */
       /* Transparent Header added as RGB because the default blue, defined as a Hex colour, does not support transparency. */
	background: rgba(0,101,162, 0.60);
	/* Original white text definition, created by theme roller */
	/* color: #eeeeee; */
	/* White text added as colour */
	color: white;
	font-weight: bold;
}

To change the colour or transparency of the header change the background property (background: rgba(0,101,162, 0.60)) to the RGBA code that will give the colour/transparency you desire.