CSS systemcolors should work in svg properties using <color>.

Source/core/css/SVGCSSParser.cpp

 /*
     Copyright (C) 2008 Eric Seidel <eric@webkit.org>
     Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
                   2004, 2005, 2007, 2010 Rob Buis <buis@kde.org>
     Copyright (C) 2005, 2006 Apple Computer, Inc.
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
@@ skipping 190 matching lines @@
                 parsedValue = parseSVGPaint();
 
             if (parsedValue)
                 m_valueList->next();
         }
         break;
 
     case CSSPropertyStopColor: // TODO : icccolor
     case CSSPropertyFloodColor:
     case CSSPropertyLightingColor:
-        if ((id >= CSSValueAqua && id <= CSSValueWindowtext) ||
-           (id >= CSSValueAliceblue && id <= CSSValueYellowgreen))
+        if ((id >= CSSValueActiveborder && id <= CSSValueWindowtext) || id == CSSValueMenu)

[pdr., 2013/05/02 17:41:08]

These statements are very similar to the codepaths above for fill and stroke. Is
there an easy way to extract this logic out into a function? This is just a
suggestion.

+            parsedValue = SVGColor::createFromColor(RenderTheme::defaultTheme()->systemColor(id));
+        else if ((id >= CSSValueAqua && id <= CSSValueTransparent) ||
+                (id >= CSSValueAliceblue && id <= CSSValueYellowgreen) || id == CSSValueGrey)
             parsedValue = SVGColor::createFromString(value->string);
         else if (id == CSSValueCurrentcolor)
             parsedValue = SVGColor::createCurrentColor();
         else // TODO : svgcolor (iccColor)
             parsedValue = parseSVGColor();
 
         if (parsedValue)
             m_valueList->next();
 
         break;
@@ skipping 138 matching lines @@
 {
     RGBA32 c = Color::transparent;
     if (!parseColorFromValue(m_valueList->current(), c))
         return 0;
     return SVGColor::createFromColor(Color(c));
 }
 
 }
 
 #endif // ENABLE(SVG)