title: Resize text in Textbutton
body: <p>Helo guys!
  I'm trying to set size of the text in TextButton using libgdx and scene2d.</p>
  
  <p>Here's how I create and initialize textbutton object:</p>
  
  <pre><code>Skin skin = new Skin();
  skin.add("white", new Texture(Gdx.files.internal("data/texture.jpg")));
  skin.add("default", new BitmapFont());
  
  TextButton.TextButtonStyle textButtonStyle = new TextButton.TextButtonStyle();
  textButtonStyle.up = skin.newDrawable("white");
  textButtonStyle.down = skin.newDrawable("white", Color.DARK_GRAY);
  textButtonStyle.checked = skin.newDrawable("white", Color.BLUE);
  textButtonStyle.over = skin.newDrawable("white", Color.LIGHT_GRAY);
  textButtonStyle.font = skin.getFont("default");
  skin.add("default", textButtonStyle);
  
  TextButton newGame = new TextButton("Hello button",skin);
  </code></pre>
  
  <p>After that the button with text in it is created perfectly, but I don't understand how can I change it's text size.</p>
  
  <p>I've already tried almost every method of Label object:</p>
  
  <pre><code>newGame.getLabel().setScale(10);
  newGame.getLabel().setWidth(100);
  </code></pre>
  
  <p>And so on. So my question is: <strong>How can I change text size in TextButton</strong>?</p>