@Override
    public Effect clone() throws CloneNotSupportedException {
        return (Effect) super.clone();
    }
Compute the Outline of the shape and return it in the supplied Outline
parameter. The default implementation does nothing and {@code outline} is not changed.

@param outline The Outline to be populated with the result. Should not be null.
caprice/ui/src/main/java/net/qiujuer/genius/ui/drawable/effect/Effect.java