Refactor ToolStripRenderer classes and improve generic and GDIPlus Copilot Instruction files.

Author: KlausLoeffelmann

src/System.Windows.Forms/System/Windows/Forms/Control.cs

@@ -279,13 +279,13 @@ public unsafe partial class Control :
     private Font? _scaledControlFont;
     private FontHandleWrapper? _scaledFontWrapper;
 
+    // Contains a collection of calculated fonts for various Dpi values of the control in the PerMonV2 mode.
+    private Dictionary<int, Font>? _dpiFonts;
+
     // ContainerControls like 'PropertyGrid' scale their children when they resize.
     // no explicit scaling of children required in such cases. They have specific logic.
     internal bool _doNotScaleChildren;
 
-    // Contains a collection of calculated fonts for various Dpi values of the control in the PerMonV2 mode.
-    private Dictionary<int, Font>? _dpiFonts;
-
     // Flag to signify whether any child controls necessitate the calculation of AnchorsInfo,
     // particularly in cases involving nested containers.
     internal bool _childControlsNeedAnchorLayout;

src/System.Windows.Forms/System/Windows/Forms/Controls/ToolStrips/ToolStripRenderer.cs

@@ -1130,12 +1130,14 @@ private protected static void OnRenderStatusStripSizingGrip(
             if (Environment.OSVersion.Version >= new Version(10, 0, 22000)
                 && statusStrip.FindForm() is Form f)
             {
+#pragma warning disable WFO5001 // Type is for evaluation purposes only and is subject to change or removal in future updates. Suppress this diagnostic to proceed.
                 cornerDef = f.FormCornerPreference switch
                 {
                     FormCornerPreference.Round => (4, new(1, 1, 2, 2)),
                     FormCornerPreference.RoundSmall => (3, new(1, 1, 2, 2)),
                     _ => (2, new(0, 0, 2, 2))
                 };
+#pragma warning restore WFO5001 // Type is for evaluation purposes only and is subject to change or removal in future updates. Suppress this diagnostic to proceed.
             }
 
             return cornerDef;