MSW, dark/light mode switching

[Robert Roebling]

Hi all,

I am seeing many great improvements for dark/light mode under MSW, but
when changing the system's mode while minimal.exe is running (after
adding
#ifdef __WXMSW__
MSWEnableDarkMode(wxApp::DarkMode_Auto);
#endif
to OnInit())
the colours are still mixed up: often the title bar being dark when
the system is light and vice versa. I know this is work in progress -
I just want to make sure that there is not an error on my side and
this should actually work now.

Robert