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Re: [ft-devel] Variable fonts: hhea/typo/win metrics interpreted differe

From: Nikolaus Waxweiler
Subject: Re: [ft-devel] Variable fonts: hhea/typo/win metrics interpreted differently for instances compared to static fonts?
Date: Thu, 20 Dec 2018 10:19:18 +0000

I just tested the static and variable fonts in macOS 10.14 TextEdit.
For the static instances, it presumably takes the hhea metrics, for
the VF, it always takes typo metrics. (It also adds the line gap at
the bottom, making text look weird, but maybe that's because the
layout logic is broken.)

So that would speak in favor of always using either typo or win
metrics for variable fonts, even for the default outlines?

Or maybe this is really the fault of GTK/Pango/something because it
loads the default outline instead of the default instance, which would
yield the correct metrics?

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