ColorCanvas: fixed bug I just introduced.

Main/Source/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/ColorCanvas/Implementation/ColorCanvas.cs

@@ -325,7 +325,7 @@ namespace Microsoft.Windows.Controls
 
             HsvColor hsv = ColorUtilities.ConvertRgbToHsv(color.R, color.G, color.B);
 
-            if (color.R != color.G && color.R != color.B)
+            if (!(color.R == color.G && color.R == color.B))
                 _spectrumSlider.Value = hsv.H;
 
             Point p = new Point(hsv.S, 1 - hsv.V);

Main/Source/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/ColorCanvas/Themes/Generic.xaml

@@ -317,7 +317,7 @@
         <Setter Property="IsSnapToTickEnabled" Value="True" />
         <Setter Property="IsDirectionReversed" Value="False" />
         <Setter Property="IsMoveToPointEnabled" Value="True" />
-        <Setter Property="Value" Value="360" />
+        <Setter Property="Value" Value="0" />
         <Setter Property="Template">
             <Setter.Value>
                 <ControlTemplate TargetType="{x:Type local:ColorSpectrumSlider}">