private string GetGlucoseMessage() => $"{FetchResult.GetFormattedStringValue()} {FetchResult.Time.ToLongTimeString()} {FetchResult.TrendIcon}";
private string GetGlucoseMessage() => $"{FetchResult.GetFormattedStringValue()} {FetchResult.Time.ToLongTimeString()} {FetchResult.TrendIcon}{FetchResult.StaleMessage(Constants.StaleResultsThreshold)}";