Set explicitly MUXC ColorPicker

Author: Avid29

components/GradientSlider/src/GradientSlider.Events.cs

@@ -42,7 +42,6 @@ protected virtual void OnThumbDragCompleted(DragCompletedEventArgs e)
     /// <summary>
     /// Called before the <see cref="ValueChanged"/> event occurs.
     /// </summary>
-    /// <param name="e"><see cref="EventArgs"/> event data for the event.</param>
     protected virtual void OnValueChanged()
     {
         ValueChanged?.Invoke(this, EventArgs.Empty);

components/GradientSlider/src/GradientSliderThumb.cs

@@ -2,6 +2,8 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using ColorPicker = Microsoft.UI.Xaml.Controls.ColorPicker;
+
 namespace CommunityToolkit.WinUI.Controls;
 
 /// <summary>

components/GradientSlider/src/GradientSliderThumbStyle.xaml

@@ -1,7 +1,8 @@
-<!--  Licensed to the .NET Foundation under one or more agreements. The .NET Foundation licenses this file to you under the MIT license. See the LICENSE file in the project root for more information.  -->
+<!--  Licensed to the .NET Foundation under one or more agreements. The .NET Foundation licenses this file to you under the MIT license. See the LICENSE file in the project root for more information.  -->
 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-                    xmlns:controls="using:CommunityToolkit.WinUI.Controls">
+                    xmlns:controls="using:CommunityToolkit.WinUI.Controls"
+                    xmlns:muxc="using:Microsoft.UI.Xaml.Controls">
 
     <Style BasedOn="{StaticResource DefaultGradientSliderThumb}"
            TargetType="controls:GradientSliderThumb" />
@@ -102,7 +103,7 @@
                         </VisualStateManager.VisualStateGroups>
                         <FlyoutBase.AttachedFlyout>
                             <Flyout Placement="Bottom">
-                                <ColorPicker x:Name="PART_ColorPicker" />
+                                <muxc:ColorPicker x:Name="PART_ColorPicker" />
                             </Flyout>
                         </FlyoutBase.AttachedFlyout>
                         <Ellipse x:Name="SliderInnerThumb"