Set marker color/icon in DrawControl

[achimgaedke]

I believe once upon a time a marker had a "color" trait.

The workaround for customizing the color marker seems to be something like this:

a = AwesomeIcon(marker_color="green", name="circle")
marker = Marker(location=center, draggable=True, icon=a)
m.add(marker);

But how do I set the marker color for new markers in the DrawControl's shapeOptions?

The example notebooks examples/DrawControl.ipynb, examples/CustomProjections.ipynb suggest that is/was possible.

Any ideas?