[Dark Mode] Insufficient contrast for the "None" text in the Dropdown Panel for the DataSource/DisplayMemeber properties in the DarkMode

[Zheng-Li01]

.NET version

.NET SDK 11.0.100-alpha.1.25608.101

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 .NET SDK 10.0/9.0

Issue description

Insufficient contrast for the "None" text in the Dropdown Panel for the DataSource/DisplayMemeber properties in the DarkMode

Steps to reproduce

1. Create a .NET winforms project with a ComboBox & PropertyGrid controls
2. Select the combobox1 as object for the propertygrid1 control
3. Set app under Dark mode in program.cs file Application.SetColorMode(SystemColorMode.Dark);
4. Run the application
5. Expand the dropdown panel for the DataSource/DisplayMemeber properties and observe the "None" t text