flip & center text :)

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
  </style>
</head>

<body>
  <script>
    // Feel free to change or delete any of the code you see in this editor!
    let svg = d3.select("body").append("svg")
      .attr("width", 960)
      .attr("height", 500)

var ci = svg.append("circle")
      .attr("cy", 200)
      .attr("cx", 120)
    	.attr('r', 20)
      .style("fill", 'green');
    
     svg.append("text")
      .text("\uf041")
      .attr("y", 250)
      .attr("x", 120)
     	.attr('text-anchor', 'middle')
     	.attr('dominant-baseline', 'central')
      .style("font-size", 36)
      .style("font-family", "FontAwesome")
    
    svg.append("text")
      .text("\uf041")
      .attr("y", 200)
      .attr("x", 120)
      .style("font-size", 36)
    	.attr('text-anchor', 'middle')
     	.attr('dominant-baseline', 'central')
      .style("font-family", "FontAwesome")
    	.attr('transform', `rotate(180 ${120} ${250})`)

</script>
</body>

https://d3js.org/d3.v4.min.js