Merge pull request #4601 from dotnet/publish-17593

Merge master into live

Author: BillWagner

includes/drawing.md

@@ -0,0 +1,2 @@
+> [!WARNING]
+> The `System.Drawing` namespace is not recommended for new development, due to not being supported within a Windows or ASP.NET service and it is not cross-platform. [ImageSharp](https://github.com/SixLabors/ImageSharp) and [SkiaSharp](https://github.com/mono/SkiaSharp) are recommended as alternatives.

xml/ns-System.Drawing.Drawing2D.xml

@@ -5,6 +5,9 @@
       <format type="text/markdown"><![CDATA[  
   
 ## Remarks  
+
+[!INCLUDE[drawing](~/includes/drawing.md)]
+
  The following table lists some of the important classes and enumerations in the <xref:System.Drawing.Drawing2D> namespace, grouped into categories.  
   
 |Class category|Details|  

xml/ns-System.Drawing.Imaging.xml

@@ -5,6 +5,9 @@
       <format type="text/markdown"><![CDATA[
 
 ## Remarks
+
+[!INCLUDE[drawing](~/includes/drawing.md)]
+
  The <xref:System.Drawing.Imaging.Metafile> class provides methods for recording and saving metafiles. The <xref:System.Drawing.Imaging.Encoder> class enables users to extend GDI+ to support any image format. The <xref:System.Drawing.Imaging.PropertyItem> class provides methods for storing and retrieving metadata in image files.
 
 > [!CAUTION]

xml/ns-System.Drawing.xml

@@ -5,6 +5,9 @@
       <format type="text/markdown"><![CDATA[  
   
 ## Remarks  
+
+[!INCLUDE[drawing](~/includes/drawing.md)]
+
  The <xref:System.Drawing.Graphics> class provides methods for drawing to the display device. Classes such as <xref:System.Drawing.Rectangle> and <xref:System.Drawing.Point> encapsulate GDI+ primitives. The <xref:System.Drawing.Pen> class is used to draw lines and curves, while classes derived from the abstract class <xref:System.Drawing.Brush> are used to fill the interiors of shapes.  
   
 > [!CAUTION]