[DarkMode] the Pane in the Anchor Editor should adapt to the dark mode

[Zheng-Li01]

.NET version

.NET SDK 10.0.100

Did it work in .NET Framework?

No

Did it work in any of the earlier releases of .NET Core or .NET 5+?

The issue also can reproduce on .NET 9.0

Issue description

Compared with other properties, the Pane in the Anchor Editor should adapt to the dark mode

Steps to reproduce

1. Create a new Windows Forms application
2. Add a Button & a PropertyGrid control to the form
3. propertyGrid1 selected the button1 as object
4. Set app under Dark mode in program.cs file: Application.SetColorMode(SystemColorMode.Dark);
5. Run the application