featureStyles for drag-and-drop layers have no visible effect

[Grammostola]

If a set of Origo style styles are defined under the featureStyles prop for the drag and drop control these styles are not adhered to when matching geometry type layers (without their own style) are dragged and dropped unto the map
To Reproduce
Steps to reproduce the behavior:

1. Have a drag and drop control defined something like

    {
      "name": "draganddrop",
      "options": {
        "groupName": "drag-and-drop-layers",
        "groupTitle": "Insläppta lager",
        "featureStyles":  {
          "Point": [{
            "circle": {
              "radius": 8,
              "stroke": {
                "color": [0, 0, 90, 1],
                "width": 2
              },
              "fill": {
                "color": [0, 0, 90, 1]
              }
            }
          }],
          "LineString": [{
            "stroke": {
              "color": [0, 0, 0, 1],
              "width": 5
            }
          },
          {
            "stroke": {
              "color": [0, 0, 0, 1],
              "width": 3
            }
          }],
          "MultiLineString": [{
            "stroke": {
              "color": [0, 0, 0, 1],
              "width": 5
            }
          },
          {
            "stroke": {
              "color": [0, 0, 0, 1],
              "width": 3
            }
          }],
          "Polygon": [{
            "stroke": {
              "color": [0, 0, 0, 1],
                "width": 5
              }
            },
            {
              "fill": {
                "color": [0, 0, 0, 1]
              }
            }
          ],
          "MultiPolygon": [{
            "stroke": {
              "color": [0, 0, 0, 1],
                "width": 5
              }
            },
            {
              "fill": {
                "color": [0, 0, 0, 1]
              }
            }
          ]
        }
      }
    },

2. Drag a polygon or multipolygon geojson into the map

Expected behavior
A polygon as black as midnight in January in the far reaches of the northern hemisphere

Current behaviour
An Origo-blue polygon

Additional context

• The drag and drop control sends a style param with an array of two style functions to viewer.addLayer(). (These appear to describe something black) . Somewhere after that the only thing applied visibly is what is in style/stylefunctions/default.js
• The same is the result for the default featureStyles defined in draganddrop.js