minor changes

ClickableTransparentOverlay/ImGuiController.cs

@@ -370,11 +370,7 @@ namespace ClickableTransparentOverlay
             this.pipeline.Dispose();
             this.mainResourceSet.Dispose();
             this.fontTextureResourceSet.Dispose();
-
+            this.ClearCachedImageResources();
-            foreach (IDisposable resource in this.ownedResources)
-            {
-                resource.Dispose();
-            }
         }
 
         /// <summary>

ClickableTransparentOverlay/NativeMethods.cs

@@ -79,7 +79,7 @@ namespace ClickableTransparentOverlay
             private int top;
             private int bottom;
 
-            public static Margins FromRectangle(System.Drawing.Rectangle rectangle)
+            public static Margins FromRectangle(Rectangle rectangle)
             {
                 var margins = new Margins
                 {