Highcharts.js - Custom Style

A recent client asked me to redesign his current stats page with analytics and told me he uses highcharts. I first mocked it up in Photoshop and then realized I wasn't sure I can actually implement those graphics.

So, I went to codepen and tried the customization. It turned out pretty good. Check it out here Highcharts.js Graph on Codepen
I'm impressed how flexible the API is. And there is so much more you can do if you start applying JS through formatter.