@Override
    public void read(JmeImporter im) throws IOException {
        super.read(im);
        InputCapsule ic = im.getCapsule(this);
        edgeWidth = ic.readFloat("edgeWidth", 1.0f);
        edgeIntensity = ic.readFloat("edgeIntensity", 1.0f);
        normalThreshold = ic.readFloat("normalThreshold", 0.5f);
        depthThreshold = ic.readFloat("depthThreshold", 0.1f);
        normalSensitivity = ic.readFloat("normalSensitivity", 1.0f);
        depthSensitivity = ic.readFloat("depthSensitivity", 10.0f);
        edgeColor = (ColorRGBA) ic.readSavable("edgeColor", ColorRGBA.Black.clone());
    }
Sets the edge color, default is black

@param edgeColor the desired color (alias created, default=(0,0,0,1))
jme3-effects/src/main/java/com/jme3/post/filters/CartoonEdgeFilter.java