Layer width of sunburst plots

Is there a way to specify the layer width of plotly sunburst plots? I have a two layer sunburst plot and I want the outer second layer a bit narrow than the inner? How can I do that?

You could use different marker.line.width values.
Here is a demo.

Sorry, but I think you got the question wrong, I meant to say width of the layer i.e. the width of the annular disk. What you have suggested, changes the width of the partition between the individual layers.

At the moment there is no such an option.
You could open a feature request issue here: