Vary color scheme depending on background

src/nunit-console/Utilities/ColorConsole.cs

@@ -149,6 +149,65 @@ namespace NUnit.ConsoleRunner.Utilities
         /// <returns></returns>
         public static ConsoleColor GetColor(ColorStyle style)
         {
+            switch (Console.BackgroundColor)
+            {
+                case ConsoleColor.White:
+                    switch (style)
+                    {
+                        case ColorStyle.Header:
+                            return ConsoleColor.DarkBlue;
+                        case ColorStyle.SubHeader:
+                            return ConsoleColor.DarkGray;
+                        case ColorStyle.SectionHeader:
+                            return ConsoleColor.DarkBlue;
+                        case ColorStyle.Label:
+                            return ConsoleColor.DarkGreen;
+                        case ColorStyle.Value:
+                            return ConsoleColor.Blue;
+                        case ColorStyle.Pass:
+                            return ConsoleColor.Green;
+                        case ColorStyle.Failure:
+                            return ConsoleColor.Red;
+                        case ColorStyle.Warning:
+                            return ConsoleColor.Yellow;
+                        case ColorStyle.Error:
+                            return ConsoleColor.Red;
+                        case ColorStyle.Output:
+                            return ConsoleColor.DarkGray;
+                        case ColorStyle.Default:
+                        default:
+                            return ConsoleColor.Green;
+                    }
+
+                case ConsoleColor.Gray:
+                    switch (style)
+                    {
+                        case ColorStyle.Header:
+                            return ConsoleColor.White;
+                        case ColorStyle.SubHeader:
+                            return ConsoleColor.DarkGray;
+                        case ColorStyle.SectionHeader:
+                            return ConsoleColor.Cyan;
+                        case ColorStyle.Label:
+                            return ConsoleColor.Green;
+                        case ColorStyle.Value:
+                            return ConsoleColor.White;
+                        case ColorStyle.Pass:
+                            return ConsoleColor.Green;
+                        case ColorStyle.Failure:
+                            return ConsoleColor.Red;
+                        case ColorStyle.Warning:
+                            return ConsoleColor.Yellow;
+                        case ColorStyle.Error:
+                            return ConsoleColor.Red;
+                        case ColorStyle.Output:
+                            return ConsoleColor.DarkGray;
+                        case ColorStyle.Default:
+                        default:
+                            return ConsoleColor.Green;
+                    }
+
+                default:
                     switch (style)
                     {
                         case ColorStyle.Header:
@@ -176,6 +235,7 @@ namespace NUnit.ConsoleRunner.Utilities
                             return ConsoleColor.Green;
                     }
             }
+        }
 
         #region Implementation of IDisposable