[Bug 54410] .NET 3.5 Checkbox checkmarks should be black instead of "Foreground" color

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=54410

--- Comment #6 from Esme Povirk  ---
Best I can tell from reading the code and the documentation at
https://learn.microsoft.com/en-us/dotnet/api/system.windows.templatebindinge...,
this was an intentional choice by whoever coded the Classic theme in WPF. It's
difficult to test on Windows because modern Windows does not allow selecting
the Classic theme. On modern themes, the Foreground property isn't referenced
in this way.

So I'm not sure if this is strictly correct, and you may find that the issue
comes back if you use .NET Core (where I can't modify the theme).