dotnet/winforms

[Dark Mode] Indeterminate CheckState icon barely visible

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#11.933 geöffnet am 20. Aug. 2024

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area-DarkModehelp wanted

Beschreibung

.NET version

9.0.0-rc.1.24418.2 + build private dll from winforms repo main branch

Did it work in .NET Framework?

Not tested/verified

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

The indeterminate check state icon is barely visible in Dark Mode. Controls affected are ContextMenuStrip, MenuStrip, StatusStrip DropDownButton and ToolStrip DropDownButton

Dark Mode Screenshot 2024-08-20 134113 (1)

Classic Mode Screenshot 2024-08-20 134353 (1)

Steps to reproduce

  1. Create a WinForms project
  2. Add a ContextMenuStrip to the form
  3. Add a toolStripMenuItem to the ContextMenuStrip
  4. Change the property of the toolStripMenuItem as below
  • Checked : True
  • CheckState : Indeterminate
  1. Set form ContextMenuStrip property to contextMenuStrip1
  2. Run the project and observe the indeterminate Checkstate icon

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