title: Indicator format with RectangularRangeIndicator using dojo toolkit
body: <p>I'm trying to use VerticalLinearGauge with RectangularRangeIndicator but I obtain a triangular format(red and green color ) as the image below. I would like the result is a large line, I used the two attributes endThickness and startThickness but no result.</p>
  
  <p><img src="https://i.stack.imgur.com/qn3uo.png" alt="enter image description here"></p>
  
  <p>Help please.</p>