public interface CompoundFormItem_skinning
When skinning basic FormItems like SelectItem and TextItem, consider that compound form items
 like DateItem and ComboBox reuse simpler items like SelectItem and TextItem, so adding a border
 to SelectItem would also apply a border to each select item within DateItem.
 To avoid such
 side-effects, if you want to add styling to all SelectItems used in your  application, you can
 create an application-specific subclass like MySelectItem and apply  properties there.