public virtual void ColorTest03()
        {
            PdfWriter writer = new PdfWriter(destinationFolder + "colorTest03.pdf");

            writer.SetCompressionLevel(CompressionConstants.NO_COMPRESSION);
            PdfDocument document = new PdfDocument(writer);
            PdfPage     page     = document.AddNewPage();
            PdfCanvas   canvas   = new PdfCanvas(page);
            CalGray     calGray1 = new CalGray(new float[] { 0.9505f, 1.0000f, 1.0890f }, 0.5f);

            canvas.SetFillColor(calGray1).Rectangle(50, 500, 50, 50).Fill();
            CalGray calGray2 = new CalGray(new float[] { 0.9505f, 1.0000f, 1.0890f }, null, 2.222f, 0.5f);

            canvas.SetFillColor(calGray2).Rectangle(150, 500, 50, 50).Fill();
            CalRgb calRgb = new CalRgb(new float[] { 0.9505f, 1.0000f, 1.0890f }, null, new float[] { 1.8000f, 1.8000f
                                                                                                      , 1.8000f }, new float[] { 0.4497f, 0.2446f, 0.0252f, 0.3163f, 0.6720f, 0.1412f, 0.1845f, 0.0833f, 0.9227f }, new float[] { 1f, 0.5f, 0f });

            canvas.SetFillColor(calRgb).Rectangle(50, 400, 50, 50).Fill();
            Lab lab1 = new Lab(new float[] { 0.9505f, 1.0000f, 1.0890f }, null, new float[] { -128, 127, -128, 127 },
                               new float[] { 1f, 0.5f, 0f });

            canvas.SetFillColor(lab1).Rectangle(50, 300, 50, 50).Fill();
            Lab lab2 = new Lab((PdfCieBasedCs.Lab)lab1.GetColorSpace(), new float[] { 0f, 0.5f, 0f });

            canvas.SetFillColor(lab2).Rectangle(150, 300, 50, 50).Fill();
            canvas.Release();
            document.Close();
            NUnit.Framework.Assert.IsNull(new CompareTool().CompareByContent(destinationFolder + "colorTest03.pdf", sourceFolder
                                                                             + "cmp_colorTest03.pdf", destinationFolder, "diff_"));
        }