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[csswg-drafts] [css-fonts] Animation on the condensed-expanded axis

From: Chris Lilley via GitHub <sysbot+gh@w3.org>
Date: Tue, 12 Sep 2017 21:56:53 +0000
To: public-css-archive@w3.org
Message-ID: <issues.opened-257196419-1505253403-sysbot+gh@w3.org>
svgeesus has just created a new issue for https://github.com/w3c/csswg-drafts:

== [css-fonts] Animation on the condensed-expanded axis ==
> Animation of font stretch: Font stretch is interpolated in discrete steps. The interpolation happens as though the ordered values are equally spaced real numbers. The interpolation result is rounded to the nearest value, with values exactly halfway between two values rounded towards the later value in the list above.

With the advent of variable fonts, which can have a condensed-expanded axis, do we really want to mandate in Fonts 3 that `font-stretch` is animated by quantization to nine discrete steps? Options:

1. Remove the wording about animation of font-stretch from Fonts 3, leaving it undefined
2. Say something about variable fonts, in passing, like 'for fonts which are not Variable Fonts, font stretch is interpolated in discrete steps"
3. Do nothing, let Fonts 4 define animation better, don't test too hard for Fonts 3 (just a single test with a non-variable font).

Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/1811 using your GitHub account
Received on Tuesday, 12 September 2017 21:56:46 UTC

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