[sylpheed:36612] some subjects are not displayed correctly on Windows 10

[mr.somewhere]

Hello all,

There's a small issue I've had for a while : some subjects are not displayed correctly on Windows 10 (64) - but are just fine with Ubuntu Mate.

That happens in the list of emails, email previews and email view.

The pictures show that more clearly than I could explain.

Is there a way to fix that? Maybe something to add to the gtkrc file?
/Program Files (x86)/Sylpheed/share/themes/MS-Windows/gtk-2.0/gtkrc
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