[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 #3 from [e-mail] ---
Sorry forgot to add: It's a wpf UI.

The Wine theme has no effect on the color of the checkmark.

I build a minimal example with source code. See the attachment (precompiled in
the bin/Debug folder). I chose green for the foreground color to show the
difference between windows and wine without making the checkmark go invisible.