Hello,
 
	The system is managed by the css, if you change the element, you can create a round rather a square
 
	 
 
	example about the square
 
span.ModulesFrontPageTickerBootstrapTickerPourcentage {
  font: 700 14px/12px Arial,Helvetica,sans-serif;
  color: #FFF;
  background: #FF6600 none repeat scroll 0% 0%;
  text-transform: uppercase;
  padding: 0.375rem 0px 0.4375rem;
  text-shadow: 1px 1px rgba(0, 0, 0, 0.24);
  width: 3.125rem;
  text-align: center;
  display: block;
  float:right;
  position: relative;
  right:1rem;
}