如何在libgdx中创建一个简单的圆角矩形按钮？

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.scenes.scene2d.ui.Button;
import com.badlogic.gdx.scenes.scene2d.ui.Skin;
import com.badlogic.gdx.scenes.scene2d.utils.TextureRegionDrawable;

public class MyGdxGame extends ApplicationAdapter {
    private SpriteBatch batch;
    private Texture buttonTexture;
    private Skin skin;
    private Stage stage;

    @Override
    public void create () {
        batch = new SpriteBatch();
        stage = new Stage();
        Gdx.input.setInputProcessor(stage);

        // 加载按钮纹理
        buttonTexture = new Texture("button_texture.png");

        // 创建按钮皮肤
        skin = new Skin();
        skin.add("button_texture", buttonTexture);

        // 创建按钮样式
        Button.ButtonStyle buttonStyle = new Button.ButtonStyle();
        buttonStyle.up = new TextureRegionDrawable(skin.getDrawable("button_texture"));

        // 创建按钮
        Button button = new Button(buttonStyle);
        button.setPosition(100, 100); // 设置按钮位置
        button.setSize(200, 100); // 设置按钮大小

        // 将按钮添加到舞台
        stage.addActor(button);
    }

    @Override
    public void render () {
        Gdx.gl.glClearColor(1, 1, 1, 1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

        batch.begin();
        stage.draw();
        batch.end();
    }

    @Override
    public void dispose () {
        batch.dispose();
        buttonTexture.dispose();
        skin.dispose();
        stage.dispose();
    }
}