dotnet / dotnet/winforms

[Dark Mode] MonthCalendar/DateTimePicker is not in drak mode after enabled SystemColorMode.Dark

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#11,951 1 comment 1 reaction 1 assignee Claimed by @KlausLoeffelmann View on GitHub
area-DarkMode help wanted
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Description

### .NET version

9.0.0-rc.1.24418.2 + private dlls built from winforms repo main branch

### Did it work in .NET Framework?

No

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

This is a new feature Dark Mode: https://github.com/dotnet/winforms/pull/11857

### Issue description

MonthCalendar/DateTimePicker is not in drak mode after enabled SystemColorMode.Dark
![image](https://github.com/user-attachments/assets/8f41e0a7-7787-43a0-a431-0f1e8c9cc499)

### Steps to reproduce

1. Create a WinForms .NET application with MonthCalendar/DateTimePicker control
2. Enable DarkMode by Application.SetColorMode(SystemColorMode.Dark) in Program.cs file
3. Run application to observe

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