title: Google Pie chart: remove white gap between pie slices
body: <p>Similar to <a href="https://stackoverflow.com/questions/18784246/removing-the-white-line-between-slices-in-flot-pie-chart/22227464">this question</a>, but for Google Pie Charts:</p>
  
  <p>How can I remove the white lines between the slices on a Google Pie Chart:</p>
  
  <p><img src="https://i.stack.imgur.com/VW4Ur.png" alt="enter image description here"></p>
  
  <p>On the image above, I want to remove the white space highlighted by the green arrow.</p>