.NET version

.NET SDK 10.0.100-rc.1.25414.103

Did it work in .NET Framework?

No

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

Yes, The issue reproduce on .NET SDK 10.0.100-preview.6.25358.103 build, not reproduce on .NET SDK 10.0.100-preview.5.25277.114

Issue description

The ForeColor & BackColor properties are not working for the controls:
The ForeColor is not working for Button control
The BackColor is not working for Button, TextBox, DomainUpDown, NumericUpDown, RichTextBox, MaskedTextBox contorls

.NET SDK 10.0.100-preview.6.25358.103

.NET SDK 10.0.100-preview.5.25277.114

Steps to reproduce

1. Open the attached application
   ReproApplication.zip
2. Build & run the project
3. Observe the results