Patternfill issue

[OssianEPPlus]

For ExcelFillXml the paths for fgColor and bgColor nodes are reversed as is correct for ExcelFillStyle.Solid but not other patternStyles.

As a continuation of this
Fill.PatternColor and Fill.BackgroundColor are also opposite from expectation when applying color to cell ranges.

code example:

using(var p = new ExcelPackage("MissMatchedColors.xlsx"))
{
    var sheet = p.Workbook.Worksheets.Add("missMatch");

    for (int i = 1; i < 20; i++)
    {
        sheet.Cells[i, 14].Value = i;
        sheet.Cells[i, 14].Style.Fill.PatternType = ExcelFillStyle.LightHorizontal;
        //This sets the pattern color.
        sheet.Cells[i, 14].Style.Fill.BackgroundColor.SetColor(Color.Red);
        //And this sets the background color.
        sheet.Cells[i, 14].Style.Fill.PatternColor.SetColor(Color.Blue);
    }

    p.Save();
}