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Re: [csswg-drafts] [css-fonts] Any proposals to make CSS font-size-adjust work better for all scripts? (#4540)

From: John Hudson via GitHub <sysbot+gh@w3.org>
Date: Wed, 27 Nov 2019 03:30:52 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-558912714-1574825451-sysbot+gh@w3.org>
I think one can derive reasonable default values based on established conventions in multiscript typography, with the caveat that there is sometimes regional and historical variation in these conventions, and also design-specific choices that may vary considerably from the conventions. I was thinking about this again recently when the makers of a font development tool asked if I could advise on default vertical metrics to predefine for different scripts in their tool. So long as the defaults are understood as conventional rather then prescriptive, and always customisable, I think this can be helpful.

There's two basic pieces of information needed:
1. What key element of each script is useful for size adjustment for visual impact, i.e. what is the x-height equivalent for each script?
2. What is the conventional height of that element relative to the Latin x-height in bilingual text setting?

This would enable both size adjustment of different fonts for the same script and also size adjustment of different fonts for multiple scripts.

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Received on Wednesday, 27 November 2019 03:30:54 UTC

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