Why does changing a chart type inherit the intially rendered charts styling?

[JasonHeyburgh]

Hello, I am trying to update the chart type after initial render but the default styling goes out of wack when selecting a different chart.
I am updating the chart using:
chart.updateOptions({ chart: { type: 'chartType' } })

Here is an example of my code, is this a bug or am I just doing something incorrectly?
https://codepen.io/MrShibumi/pen/poWyeQm