if (!acceptedColors.Contains(dataItem.Color) && !string.IsNullOrEmpty(dataItem.Color))
                {
                    errorLst.Add(
                        $"DataItem with label {dataItem.Label} did supply color {dataItem.Color}, but the only allowed values are: e8eaf6 for grey, ffe4e4 for red, f0f8db for green, e2f4fb for blue, e2f4fb for purple, fff6df for yellow, None for default or leave it blank.");
                }