Pagination controls buttons are not centered and missing the navigation arrows

package region;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import javafx.application.Application;
import javafx.beans.InvalidationListener;
import javafx.beans.Observable;
import javafx.geometry.Bounds;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.Pagination;
import javafx.scene.layout.Region;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.scene.shape.StrokeType;
import javafx.stage.Stage;
import javafx.util.Callback;

/**
 * User: richardbair Date: 8/22/12 Time: 9:42 AM
 */
public class RegionUITestBase extends Application {
    @Override public void start(Stage stage) throws Exception {
        final List<Method> tests = new ArrayList<Method>();

        Class clazz = getClass();
        Method[] methods = clazz.getMethods();
        for (int i=0; i<methods.length; i++) {
            Class<?>[] paramTypes = methods[i].getParameterTypes();
            if (paramTypes.length == 1 && Region.class.isAssignableFrom(paramTypes[0])) {
                tests.add(methods[i]);
            }
        }

        final VBox parent = new VBox(5);
        parent.setAlignment(Pos.CENTER);
        parent.setFillWidth(false);
        parent.setPadding(new Insets(12));
        final Label label = new Label();
        label.setMinHeight(200);
        label.setWrapText(true);
        final Region region = new Region();
        region.setPrefSize(300, 300);
        final Rectangle boundsRect = new Rectangle();
        region.boundsInParentProperty().addListener(new InvalidationListener() {
            @Override public void invalidated(Observable observable) {
                Bounds bounds = region.getBoundsInParent();
                boundsRect.setX(bounds.getMinX());
                boundsRect.setY(bounds.getMinY());
                boundsRect.setWidth(bounds.getWidth());
                boundsRect.setHeight(bounds.getHeight());
            }
        });
        boundsRect.setFill(null);
        boundsRect.setStroke(Color.BLACK);
        boundsRect.setStrokeType(StrokeType.OUTSIDE);
        boundsRect.setManaged(false);
        parent.getChildren().addAll(label, region, boundsRect);

        // I'm going to use a Pagination control to implement my multiple
        // test test!
        Pagination pagination = new Pagination(tests.size());
        pagination.setPageFactory(new Callback<Integer, Node>() {
            @Override public Node call(Integer param) {
                // We're going to reuse the same child every time. I wonder if this works?
                Method test = tests.get(param);
                try {
                    test.invoke(RegionUITestBase.this, region);
                } catch (IllegalAccessException e) {
                    e.printStackTrace();
                } catch (InvocationTargetException e) {
                    e.printStackTrace();
                }
                label.setText("Test: " + test.getName() + "\nStyle=" + (region.getStyle().replace(";", ";\n\t")));
                return parent;
            }
        });

        Scene scene = new Scene(pagination);
        stage.setScene(scene);
        stage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }

    public void testBasicFill(Region region) {
        region.setStyle("-fx-background-color: red;");
    }

    public void testNegativeInsets(Region region) {
        region.setStyle(
                "-fx-background-color: red;" +
                "-fx-background-insets: 0 0 -10 0");
    }

    public void testNegativeInsets2(Region region) {
        region.setStyle(
                "-fx-background-color: red;" +
                "-fx-background-insets: -5 -7 -9 -11");
    }

    public void testInsets1(Region region) {
        region.setStyle(
                "-fx-background-color: red;" +
                "-fx-background-insets: 5");
    }

    public void testInsets2(Region region) {
        region.setStyle(
                "-fx-background-color: red;" +
                "-fx-background-insets: 5 10");
    }

    public void testInsets3(Region region) {
        region.setStyle(
                "-fx-background-color: red;" +
                "-fx-background-insets: 5 10 15");
    }

    public void testInsets4(Region region) {
        region.setStyle(
                "-fx-background-color: red;" +
                "-fx-background-insets: 5 10 15 20");
    }

    public void testScenario1(Region region) {
        region.setStyle(
                "-fx-background-color: red;" +
                "-fx-background-insets: 0 0 -10 0, 0, 10, 20;" +
                "-fx-background-radius: 10 20 30 40;" +
                "-fx-padding: 10 20 30 40;");
    }

    public void testScenario2(Region region) {
        region.setStyle(
                "-fx-background-color: red, green, blue, yellow;" +
                "-fx-background-insets: 0 0 -10 0, 0, 10, 20;" +
                "-fx-background-radius: 5 10 15 20, 25, 30 35 40 45;" +
                "-fx-padding: 10 20 30 40;");
    }

    public void testScenario3(Region region) {
        region.setStyle(
                "-fx-background-color: red, green, blue, yellow;" +
                "-fx-background-insets: 0 0 -10 0, 0, 10, 20;" +
                "-fx-background-radius: 10 20 30 40;" +
                "-fx-padding: 10 20 30 40;");
    }

    public void testExample1(Region region) {
        region.setStyle(
                "-fx-background-color: red, green, blue;" +
                "-fx-background-insets: 4, 8, 12, 16;" + // An extra value here, which should be ignored
                "-fx-background-radius: 4;");
    }
}