#### Polygon fill color function

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*function (data, dsData): string*

A JavaScript function used to compute fill color of the polygon.

**Parameters:**

<ul>
  {% include widget/lib/map/map_fn_args %}
</ul>

**Returns:**

Should return string value presenting fill color of the polygon.

In case no data is returned, color value from **Color** settings field will be used.

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{% include widget/lib/map/color_fn_examples %}
