title: mpandroidchart LimitLine set transparent line and change label color
body: <p>(This question was for MPAndroidChart-1.7.4)</p>
  
  <p>I love using the <code>mpandroidchart</code> library to create graphic plotting for my android app, but I am experiencing some difficulties with the <code>LimitLine</code> object right now. I am trying to set the line to be <code>transparent</code> and the label to be white with bigger font. Is it possible? I know there is no existing methods can do that right now, but just wondering if there is any way I can customize it myself? Any help would be great! Thanks.</p>
  
  <p>Note: This is my first post so I can not attach an image here. I hope my question is clear to those who has experience with <code>mpandroidchart</code>.</p>
  
  <pre><code>LimitLine ll1 = new LimitLine((float) (values[1]*maxFactor));
  ll1.setLineWidth(1.5f);
  ll1.setDrawValue(true);
  ll1.setLineColor(res.getColor(R.color.new_orange));
  ll1.setLabelPosition(LimitLabelPosition.RIGHT);
  </code></pre>