title: R highcharter legend based on point color
body: <p>I have codes and plot below</p>
  
  <pre><code>tmp &lt;- data.frame(x = 1:5, y = rnorm(5),
  color = c("#00FF00", "#FF0000", "#00FF00", "#ffa500", "#FF0000"))
  
  highchart() %&gt;%
    hc_add_series(data= tmp, hcaes(x = x, y = y, color = color), type = "line")
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/dXeap.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/dXeap.png" alt="enter image description here"></a></p>
  
  <p>For the legend, currently it is "Series 1", I want to make it point legend for each point color, which is Green, Orange, and Red. And also customize the legend text.</p>
  
  <p>Legend should look Like:</p>
  
  <p>(red point) 20% quantile    (green point) 40% quantile   (orange point) 80% quantile</p>