title: What does the green dotted vertical line represent in the flame chart on the timeline panel?
body: <p><a href="https://i.stack.imgur.com/mhGAR.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mhGAR.png" alt="enter image description here"></a></p>
  
  <p>The blue dotted line around 475ms represents the <code>DOMContentLoaded</code> event. The red dotted line around 760ms represents the <code>load</code> event. But when I hover over the green dotted line it just says <code>Frame at 499ms</code>. What does that mean?</p>