Use color "not set" if currentColor is not defined instead of color "none"

- set correct default for fill/stroke unset color
- fixes #398

Source/Painting/SvgColourServer.cs

@@ -39,7 +39,10 @@ namespace Svg
         {
             //is none?
             if (this == SvgPaintServer.None) return new SolidBrush(System.Drawing.Color.Transparent);
-                
+
+            // default fill color is black, default stroke color is none
+            if (this == SvgColourServer.NotSet) return new SolidBrush(forStroke ? System.Drawing.Color.Transparent : System.Drawing.Color.Black);
+
             int alpha = (int)Math.Round((opacity * (this.Colour.A/255.0) ) * 255);
             Color colour = System.Drawing.Color.FromArgb(alpha, this.Colour);
 

Source/Painting/SvgDeferredPaintServer.cs

@@ -35,7 +35,7 @@ namespace Svg
                                         where e.Color != SvgPaintServer.None && e.Color != SvgColourServer.NotSet && 
                                               e.Color != SvgColourServer.Inherit && e.Color != SvgColourServer.None
                                         select e).FirstOrDefault();
-                    _concreteServer = (colorElement == null ? SvgPaintServer.None : colorElement.Color);
+                    _concreteServer = (colorElement == null ? SvgColourServer.NotSet : colorElement.Color);
                 }
                 else 
                 {

Tests/Svg.UnitTests/PassingTests.csv

@@ -186,8 +186,9 @@ __issue-323-02
 __issue-323-03
 __issue-329-01
 __issue-338-01_stroke_width
+__issue-385-01_Test_text-anchor-middle
+__issue-398-01
 __pull_request-373-01
 __pull_request-374-01
-__issue-385-01_Test_text-anchor-middle
 __Telefunken_FuBK_test_pattern
 __title
\ No newline at end of file

Tests/W3CTestSuite/svg/__issue-398-01.svg

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\ No newline at end of file