title: How can I change the size of the CheckBox image of LibGdx?
body: <p>I'm using the skin from libgdx tests: uiskin.json.</p>
  
  <p>For some reason the checkbox is displayed much smaller as f.e. in badlogic/gdx/tests/MipMapTest.java
  What does the size of the Checkbox depend on? the camera's resolution? Or is there a way to set it manually?</p>
  
  <p>Helper.RESOLUTION_WIDTH = 800 and</p>
  
  <p>Helper.RESOLUTION_HEIGHT = 1280</p>
  
  <pre><code>@Override
  public void show() {
  
      skin = new Skin(Gdx.files.internal("skins/uiskin.json"));
      cam = new OrthographicCamera(Helper.RESOLUTION_WIDTH, Helper.RESOLUTION_HEIGHT);
      cam.position.set(Helper.RESOLUTION_WIDTH / 2, Helper.RESOLUTION_HEIGHT / 2, 0); 
      stage = new Stage(Helper.RESOLUTION_WIDTH, Helper.RESOLUTION_HEIGHT, true);
      stage.setCamera(cam);
  
      CheckBox checkBox1 = new CheckBox("", skin);
      checkBox1.addListener(new ChangeListener() {
  
          @Override
          public void changed(ChangeEvent event, Actor actor) {
              game.setScreen(new WinScreen2a(game));
          }
      });
      CheckBox checkBox2 = new CheckBox("", skin);
      checkBox2.addListener(new ChangeListener() {
  
          @Override
          public void changed(ChangeEvent event, Actor actor) {
              game.setScreen(new WinScreen2b(game));
          }
      });
  
      Window window = new Window("Dialog", skin);
      window.debug();
      window.setPosition(Helper.RESOLUTION_WIDTH/2 - 375, 10);
      window.setSize(750, 350);
  
      table.add(checkBox1).left();
      table.getCells().get(0).size(200, 100);
      table.add(option1).width(500).height(100).pad(10f);
      table.row();
  
      table.add(checkBox2).left();
      table.getCells().get(2).size(200, 100);
      table.add(option2).width(500).height(100).pad(10f);
      table.row();
  
      window.add(table).top().left();
      stage.addActor(window);
  </code></pre>