}
private void decorateDriverField(DriverDescriptor driver) {
if (driver != null) {
DriverDescriptorUi ui = new DriverDescriptorUi(driver);
ui.decorate(driverFieldUi);
driverFieldUi.setBackgroundColor(driverField.getInputComponent().getBackground());
} else {
driverField.setValue("");
driverFieldUi.setToolTip("Must specify a driver");
}