title: How to add rounded corners for amcharts?
body: <p>I am creating an amchart. It contains some chart data, for this I want to make rounded corners for both sides of chart.</p>
  
  <p>It is working when I added first element in all charts data.</p>
  
  <p>I have included codepen link what I have tried.
  <a href="https://codepen.io/meeravali_shaik/pen/xobPOB" rel="nofollow noreferrer">https://codepen.io/meeravali_shaik/pen/xobPOB</a></p>
  
  <p>Thanks in advance.</p>
  
  <pre><code>chart.data = [{
   "country": "Lithuania",
    "research": 501.9,
    "marketing": 250,
    "sales": 199
  }
  , {
     "country": "Republic",
     //"research": 301.9,   // if commented radius is not effecting
     "marketing": 222,
     "sales": 251
   }
  </code></pre>