static _roundFormattedValueShownOnFocus(value, settings) {
        return this._roundValue(value, settings, Number(settings.decimalPlacesShownOnFocus));
    }
Round the given `value` with the number of decimal places to show for the element if focused.

@param {string|null} value An unformatted numeric value
@param {object} settings
@returns {*}
@private