Unable to create multithread UI

[LHTXQ]

Describe the bug

I want to creat windows on new thread but get an error in window construct method(Can't access between each process can freeze "System. Windows. Media. SolidColorBrush", because can't freeze it).

I think the solution to this problem should be to make all Brush freezable.

To Reproduce

Creat new window as:

var thread = new Thread(()=>
ToolKitWindow = new():
ToolKitWindow. Closed += delegate
{
Dispatcher.CurrentDispatcher.BeginInvokeShutdown(DispatcherPriority.Normal):
};
ToolKitWindow. Dispatcher. Invoke(()=>
{
ToolKitWindow.Show():
Dispatcher. Run();
});
thread.SetApartmentState (ApartmentState. STA):
thread. Start();

Expected behavior

Creat success.

Screenshots

No response

OS version

11

.NET version

6

WPF-UI NuGet version

2.0.3

Additional context

No response