I'm using SeriesLine to render a border line on the area chart. Solid lines work just fine, but I can't figure out how to apply dashed lines.

What I want to achieve is something like:




What I have so far:




I just want to apply a dashed line on the the gray chart area.


The solid lines are applied using the following prop:
<ChartSeriesItem line={ style: 'smooth', color: '#888888', width: 2 } />