private void initBotoes() {
    texturaBotao = new Texture("buttons/button.png");
    texturaBotaoPressionado = new Texture("buttons/button-down.png");

    ImageTextButton.ImageTextButtonStyle estilo = new ImageTextButton.ImageTextButtonStyle();

    estilo.font = foneBotoes;
    estilo.up = new SpriteDrawable(new Sprite(texturaBotao));
    estilo.down = new SpriteDrawable(new Sprite(texturaBotaoPressionado));

    btnIniciar = new ImageTextButton("Iniciar Jogo", estilo);
    palco.addActor(btnIniciar);

    btnIniciar.addListener(
        new ClickListener() {
          @Override
          public void clicked(InputEvent event, float x, float y) {
            // evento de click do botão
            game.setScreen(new TelaJogo(game));
          }
        });
  }
  private void atulizarBotoes() {
    float x = camera.viewportWidth / 2 - btnIniciar.getPrefWidth() / 2;
    float y = camera.viewportHeight / 2 - btnIniciar.getHeight() / 2;

    btnIniciar.setPosition(x, y);
  }
  private void createStageActors() {
    scroll_table = new Table();

    Label directorLabel =
        new Label("[BLUE]Directora del proyecto:", skin2.get("result", Label.LabelStyle.class));
    Label director2Label =
        new Label("[OLIVE]Anke Berns", skin2.get("result", Label.LabelStyle.class));

    Label tutorLabel =
        new Label("[BLUE]Tutor del proyecto:", skin2.get("result", Label.LabelStyle.class));
    Label tutor2Label =
        new Label("[OLIVE]Manuel Palomo Duarte", skin2.get("result", Label.LabelStyle.class));

    Label developLabel =
        new Label("[BLUE]Desarrollador:", skin2.get("result", Label.LabelStyle.class));
    Label develop2Label =
        new Label("[OLIVE]Juan Miguel Ruiz Ladrón", skin2.get("result", Label.LabelStyle.class));

    Label colaboratorsLabel =
        new Label("[BLUE]Colaboradores:", skin2.get("result", Label.LabelStyle.class));
    Label colaborators2Label =
        new Label("[OLIVE]Alicia Garrido Guerrero", skin2.get("result", Label.LabelStyle.class));
    Label colaborators3Label =
        new Label("[OLIVE]Mercedes Paéz Piña", skin2.get("result", Label.LabelStyle.class));
    Label colaborators4Label =
        new Label("[OLIVE]Salvador Reyes Sánchez", skin2.get("result", Label.LabelStyle.class));
    Label colaborators5Label =
        new Label("[OLIVE]Lorena Gutiérrez Madroñal", skin2.get("result", Label.LabelStyle.class));

    Label logo = new Label("", skin.get("logo", Label.LabelStyle.class));

    directorLabel.setWrap(true);
    director2Label.setWrap(true);

    tutorLabel.setWrap(true);
    tutor2Label.setWrap(true);

    developLabel.setWrap(true);
    develop2Label.setWrap(true);

    colaboratorsLabel.setWrap(true);
    colaborators2Label.setWrap(true);
    colaborators3Label.setWrap(true);
    colaborators4Label.setWrap(true);
    colaborators5Label.setWrap(true);

    directorLabel.setAlignment(Align.left);
    director2Label.setAlignment(Align.left);

    tutorLabel.setAlignment(Align.left);
    tutor2Label.setAlignment(Align.left);

    developLabel.setAlignment(Align.left);
    develop2Label.setAlignment(Align.left);

    colaboratorsLabel.setAlignment(Align.left);
    colaborators2Label.setAlignment(Align.left);
    colaborators3Label.setAlignment(Align.left);
    colaborators4Label.setAlignment(Align.left);
    colaborators5Label.setAlignment(Align.left);

    ImageTextButton backButton =
        new ImageTextButton("Back", skin.get("back", ImageTextButton.ImageTextButtonStyle.class));
    backButton.addListener(
        new ClickListener() {
          public void clicked(InputEvent event, float x, float y) {
            g.setScreen(new MainScreen(g));
            dispose();
          }
        });

    scroll_table
        .add(logo)
        .width(Gdx.graphics.getWidth() * 0.3f)
        .height(Gdx.graphics.getHeight() * 0.2f)
        .colspan(2);
    scroll_table.row();

    scroll_table
        .add(tutorLabel)
        .width(Gdx.graphics.getWidth() * 0.8f)
        .height(Gdx.graphics.getHeight() * 0.1f)
        .colspan(2);
    scroll_table.row();

    scroll_table
        .add()
        .width(Gdx.graphics.getWidth() * 0.1f)
        .height(Gdx.graphics.getHeight() * 0.1f);
    scroll_table
        .add(tutor2Label)
        .width(Gdx.graphics.getWidth() * 0.7f)
        .height(Gdx.graphics.getHeight() * 0.1f);
    scroll_table.row();

    scroll_table
        .add(directorLabel)
        .width(Gdx.graphics.getWidth() * 0.8f)
        .height(Gdx.graphics.getHeight() * 0.1f)
        .colspan(2);
    scroll_table.row();

    scroll_table
        .add()
        .width(Gdx.graphics.getWidth() * 0.1f)
        .height(Gdx.graphics.getHeight() * 0.1f);
    scroll_table
        .add(director2Label)
        .width(Gdx.graphics.getWidth() * 0.7f)
        .height(Gdx.graphics.getHeight() * 0.1f);
    scroll_table.row();

    scroll_table
        .add(developLabel)
        .width(Gdx.graphics.getWidth() * 0.8f)
        .height(Gdx.graphics.getHeight() * 0.1f)
        .colspan(2);
    scroll_table.row();

    scroll_table
        .add()
        .width(Gdx.graphics.getWidth() * 0.1f)
        .height(Gdx.graphics.getHeight() * 0.1f);
    scroll_table
        .add(develop2Label)
        .width(Gdx.graphics.getWidth() * 0.7f)
        .height(Gdx.graphics.getHeight() * 0.1f);
    scroll_table.row();

    scroll_table
        .add(colaboratorsLabel)
        .width(Gdx.graphics.getWidth() * 0.8f)
        .height(Gdx.graphics.getHeight() * 0.1f)
        .colspan(2);
    scroll_table.row();

    scroll_table
        .add()
        .width(Gdx.graphics.getWidth() * 0.1f)
        .height(Gdx.graphics.getHeight() * 0.1f);
    scroll_table
        .add(colaborators2Label)
        .width(Gdx.graphics.getWidth() * 0.7f)
        .height(Gdx.graphics.getHeight() * 0.1f);
    scroll_table.row();

    scroll_table
        .add()
        .width(Gdx.graphics.getWidth() * 0.1f)
        .height(Gdx.graphics.getHeight() * 0.1f);
    scroll_table
        .add(colaborators3Label)
        .width(Gdx.graphics.getWidth() * 0.7f)
        .height(Gdx.graphics.getHeight() * 0.1f);
    scroll_table.row();

    scroll_table
        .add()
        .width(Gdx.graphics.getWidth() * 0.1f)
        .height(Gdx.graphics.getHeight() * 0.1f);
    scroll_table
        .add(colaborators4Label)
        .width(Gdx.graphics.getWidth() * 0.7f)
        .height(Gdx.graphics.getHeight() * 0.1f);
    scroll_table.row();

    scroll_table
        .add()
        .width(Gdx.graphics.getWidth() * 0.1f)
        .height(Gdx.graphics.getHeight() * 0.1f);
    scroll_table
        .add(colaborators5Label)
        .width(Gdx.graphics.getWidth() * 0.7f)
        .height(Gdx.graphics.getHeight() * 0.1f);
    scroll_table.row();

    scroll_table
        .add(backButton)
        .width(Gdx.graphics.getWidth() * 0.8f)
        .height(Gdx.graphics.getHeight() * 0.1f)
        .colspan(2);
    scroll_table.row();

    ScrollPane scroller = new ScrollPane(scroll_table);
    final Table table = new Table();
    table.setFillParent(true);

    table.add(scroller).expand().fill();

    stage.addActor(table);
  }