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

From: Dave Crossland via GitHub <sysbot+gh@w3.org>
Date: Fri, 14 May 2021 00:17:56 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-840911450-1620951474-sysbot+gh@w3.org>
> > Recall that @fantasai’s suggestion to add pt and px keywords identifies the unit to be used for matching font-size to opsz.
> 
> That suggestion was made before the opsz axis definition in the OT spec was revised and clarified, when it seemed that different environments might interpret the unit scale differently when using `auto`, so allow for manual override in the CSS. I wonder if that suggestion still makes sense now that the unit scale has been clarified? 

I think so.

Having worked to get that clarification made, I'm aware of absolutely no effect of that work. 

It would be ideal if the default auto behavior was as the OpenType spec describes. 

But I'll settle for being able to configure to achieve the specced behavior, and being able to configure for other behavior. 

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