Method setVariation

lib/theme-config.js:111–117

* Variation Name Setter * * @param variationIndex * @returns {ThemeConfig}

(variationIndex)

     * @returns {ThemeConfig}
     */
    setVariation(variationIndex) {
        if (variationIndex !== this.variationIndex) {
            this.variationIndex = variationIndex;
            this.currentVariationSettings = null;
        }
        return this;
    }

    /**
     * Get variation object by index