Polygon Styling

Relevant Cesium Source

Relevant Google Earth Source (link)

// If polygonPlacemark doesn't already have a Style associated
                    // with it, we create it now.
                    if (!polygonPlacemark.getStyleSelector()) {
                        polygonPlacemark.setStyleSelector(ge.createStyle(''));
                    }

// The Style of a Feature is retrieved as
                    // feature.getStyleSelector().  The Style itself contains a
                    // LineStyle and a PolyStyle, which are what we manipulate to change
                    // the line color, line width, and inner color of the polygon.
                    var lineStyle = polygonPlacemark.getStyleSelector().getLineStyle();
                    lineStyle.setWidth(lineStyle.getWidth() + 2);
                    // Color is specified in 'aabbggrr' format.
                    lineStyle.getColor().set('66ff0000');

// Color can also be specified by individual color components.
                    var polyColor = polygonPlacemark.getStyleSelector().getPolyStyle().getColor();
                    polyColor.setA(200);
                    polyColor.setB(0);
                    polyColor.setG(255);
                    polyColor.setR(255);