public function getJsonConfig()
     * Parse swatch labels for template
     *
     * @codeCoverageIgnore
     * @param null $swatchStoreValue  //Remove
     * @return string                //Remove
     * @param null|array $swatchStoreValue  //Add
     * @return null|array                   //Add
     */
    protected function reformatSwatchLabels($swatchStoreValue = null)
    {
        if ($swatchStoreValue === null) {
            return;
        }
        $newSwatch = '';  // Remove
        $newSwatch = [];  //Add
        foreach ($swatchStoreValue as $key => $value) {
            if ($value[0] == '#') {
                $newSwatch[$key] = 'background: '.$value;