Java tutorial
import javafx.application.Application; import javafx.scene.Group; import javafx.scene.Scene; import javafx.scene.paint.Color; import javafx.scene.shape.Rectangle; import javafx.scene.shape.RectangleBuilder; import javafx.stage.Stage; public class Main extends Application { public static void main(String[] args) { Application.launch(args); } @Override public void start(Stage primaryStage) { Group root = new Group(); Scene scene = new Scene(root, 551, 400); Group buttonGroup = new Group(); Rectangle buttonArea = RectangleBuilder.create().arcWidth(15).arcHeight(20).fill(new Color(0, 0, 0, .55)) .x(0).y(0).width(60).height(30).stroke(Color.BLACK).build(); buttonGroup.getChildren().add(buttonArea); root.getChildren().add(buttonGroup); primaryStage.setScene(scene); primaryStage.show(); } }