[Dark Mode] Focused TrackBar in dark mode lacks contrast, needs more visual guidance.

[Zheng-Li01]

.NET version

9.0.0-rc.1.24414.1 + build private dll form 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: #11857

Issue description

The cursor of TrackBar controls should have the visible color when using mouse hover on it

Steps to reproduce

1. Create a WinForms .NET Core application with TrackBar control.
2. Enable DarkMode by Application.SetColorMode(SystemColorMode.Dark) in Program.cs file.
3. Run the application.
4. Using mouse hover on it

[KlausLoeffelmann]

This is something, where we need to check the used colors. If the colors are determined by the system, we would consider doing some custom painting as a visual guidance for .NET 10.

[dotnet-policy-service]

This issue is now marked as "help wanted", and we’re looking for a community volunteer to work on this issue. If we receive no interest in 180 days, we will close the issue. To learn more about how we handle feature requests, please see our documentation.

Happy Coding!