docs: minor adjustments to GLCanvasElement and SKCanvasElement docs

(cherry picked from commit 1c8d843)

doc/articles/controls/GLCanvasElement.md

@@ -23,7 +23,7 @@ These three abstract methods take a `Silk.NET.OpenGL.GL` parameter that can be u
 
 ### The GLCanvasElement constructor
 
-The protected constructor requires a `Func<Window>` argument that fetches the `Microsoft.UI.Xaml.Window` object that the `GLCanvasElement` belongs to. This function is required because WinUI doesn't yet provide a way to get the `Window` of a `FrameworkElement`. This paramater is ignored on Uno Platform and must be set to null. This function is only called while the `GLCanvasElement` is still in the visual tree.
+The protected constructor requires a `Func<Window>` argument that fetches the `Microsoft.UI.Xaml.Window` object that the `GLCanvasElement` belongs to. This function is required because WinUI doesn't yet provide a way to get the `Window` of a `FrameworkElement`. This parameter is ignored on Uno Platform and must be set to null. This function is only called while the `GLCanvasElement` is still in the visual tree.
 
 ### The `Init` method
 
@@ -47,7 +47,7 @@ To learn more about using [Silk.NET](https://www.nuget.org/packages/Silk.NET.Ope
 
 ## Full example
 
-To see this in action, here's a complete sample that uses `GLCanvasElement` to draw a triangle. Note how you have to be careful with surrounding all the OpenGL-related logic in platform-specific guards. This is the case for both the [XAML](platform-specific-xaml) and the [code-behind](platform-specific-csharp).
+To see this in action, here's a complete sample that uses `GLCanvasElement` to draw a triangle. Note how you have to be careful with surrounding all the OpenGL-related logic in platform-specific guards. This is the case for both the [XAML](platform-specific-xaml) and the [code-behind](platform-specific-csharp). For complete C# projects, visit our [GLCanvasElement Samples in the Uno.Samples repository](https://aka.platform.uno/glcanvaselement-sample).
 
 XAML:
 

doc/articles/controls/SKCanvasElement.md

@@ -37,13 +37,10 @@ XAML:
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:local="using:BlankApp"
-             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:skia="http://uno.ui/skia"
              xmlns:not_skia="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-             mc:Ignorable="d skia"
-             d:DesignHeight="300"
-             d:DesignWidth="400">
+             mc:Ignorable="skia">
 
     <Grid>
         <skia:Grid>
@@ -70,7 +67,7 @@ namespace BlankApp
 {
     public sealed partial class SKCanvasElement_Simple : UserControl
     {
-#if __SKIA__
+#if HAS_UNO_SKIA
         public int MaxSampleIndex => SKCanvasElementImpl.SampleCount - 1;
 #endif
 

src/AddIns/Uno.WinUI.Graphics2DSK/SKCanvasElement.cs

@@ -26,7 +26,7 @@ public abstract class SKCanvasElement : FrameworkElement
 	/// <param name="area">The dimensions of the clipping area.</param>
 	/// <remarks>
 	/// When called, the <paramref name="canvas"/> is already set up such that the origin (0,0) is at the top-left of the clipping area.
-	/// Drawing outside this area (i.e. outside the (0, 0, area.Width, area.Height) rectangle will be clipped out.
+	/// Drawing outside this area (i.e. outside the (0, 0, area.Width, area.Height) rectangle) will be clipped out.
 	/// </remarks>
 	protected abstract void RenderOverride(SKCanvas canvas, Size area);
 

src/SamplesApp/UITests.Shared/Windows_UI_Composition/SKCanvasElement_Simple.xaml

@@ -2,13 +2,10 @@
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:local="using:UITests.Shared.Windows_UI_Composition"
-             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:skia="http://uno.ui/skia"
              xmlns:not_skia="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-             mc:Ignorable="d skia"
-             d:DesignHeight="300"
-             d:DesignWidth="400">
+             mc:Ignorable="skia">
 
 	<Grid>
 		<skia:Grid>