FarPoint.Win.Spread.NamedStyleCollection nsc = new FarPoint.Win.Spread.NamedStyleCollection();
FarPoint.Win.Spread.NamedStyle ns1 = new FarPoint.Win.Spread.NamedStyle("StyleHeaders", "HeaderDefault");
FarPoint.Win.Spread.NamedStyle ns2 = new FarPoint.Win.Spread.NamedStyle("StyleData", "DataAreaDefault");
System.Collections.IEnumerator se;
ns1.BackColor = Color.LightBlue;
ns2.BackColor = Color.Gray;
nsc.AddRange(new Object[] {ns1, ns2});
fpSpread1.NamedStyles = nsc;
fpSpread1.ActiveSheet.ColumnHeader.DefaultStyle = nsc[0];
fpSpread1.ActiveSheet.DefaultStyle = nsc[1];
se = nsc.GetEnumerator();
listBox1.Items.AddRange(new Object[] {se.MoveNext().ToString(), se.Current.ToString()});