_populateValueCacheForTheme(theme, settings) {
        if (_.isEmpty(theme.customSettings)) {
            this._valueCache.populate([]);
            return;
        }

        this._valueCache.populate(
            this._computeCachedSettings(settings)
        );
    }
@param {Object} theme - checked theme output from gscan
@param {Array} settings - theme settings fetched from repository
@private