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Re: [csswg-drafts] [css-fonts] Proposal to extend CSS font-optical-sizing (#4430)

From: Chris Lilley via GitHub <sysbot+gh@w3.org>
Date: Thu, 17 Oct 2019 16:33:15 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-543257559-1571329994-sysbot+gh@w3.org>
I notice that [the one rendering-based WPT test for optical sizing](https://test.csswg.org/harness/test/css-fonts-4_dev/spec/css-fonts-4/section/8.1/variable-opsz/) checks that the result of 

1. setting the `font-size` (in px) with the initial value (`auto`) of `font-optical-sizing`
2. setting `font-variation-settings: 'opsz'` to the same value as the px value

matches. In other words, the test checks that `opsz` is set in `px`. So yes [there is interop](https://test.csswg.org/harness/results/css-fonts-4_dev/grouped/section/8.1/) but the rendered result in real-world usage will be suboptimal because the adjustment created by the font designer is not being applied correctly. 

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Received on Thursday, 17 October 2019 16:33:18 UTC

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