customSave() {
        const data = {
            constructorParamaters: [this.color],
            nodes: {
                g: findNode(this.g),
                f: findNode(this.f),
                a: findNode(this.a),
                b: findNode(this.b),
                d: findNode(this.d),
                e: findNode(this.e),
                c: findNode(this.c),
                dot: findNode(this.dot),
            },
        };
        return data;
    }
@memberof SevenSegDisplay
fn to create save Json Data of object
@return {JSON}