geopackage-sdk/src/main/java/mil/nga/geopackage/extension/style/FeatureTableStyles.java
public IconRow getIcon(FeatureRow featureRow, GeometryType geometryType) {
        return getIcon(featureRow.getId(), geometryType);
    }
public IconRow getIcon(FeatureRow featureRow, GeometryType geometryType) {
        return getIcon(featureRow.getId(), geometryType);
    }
Get the icon of the feature row with the provided geometry type,
searching in order: feature geometry type icon, feature default icon,
table geometry type icon, table default icon

@param featureRow   feature row
@param geometryType geometry type
@return icon row