[Webkit-unassigned] [Bug 247987] Regression: "font-optical-sizing: auto" has no effect in Safari 16 on macOS Ventura & iOS 16

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=247987

--- Comment #5 from Stephen Nixon <stephen at arrowtype.com> ---
Thanks for taking a look, Myles, and thanks also for suggesting a workaround!

I was going to suggest Roboto Flex, but I see that it doesn’t have named instances for opsz locations, and indeed, a quick test shows that it doesn’t suffer from this issue. I believe that Google Fonts avoids having named instances along the opsz axis, presumably because they want users to only think about selecting a weight, and not even having to realize that the opsz is being automatically set by the system.

If Apple needs someone to create a simple test font with named opsz instances and license it for open-source use, my services are available. :) The Kyrios license also allows unlimited web use, so feel free to pick up a license on Future Fonts and use that as a test case, if it seems useful here. 

(I’m not trying to sell anything per se, I just have limited time in the day and can’t volunteer too much of it to Apple, but I’m happy to help more if that would be helpful. Making a test font should be pretty quick and easy, e.g. you could make a single character that acts very differently along the opsz axis, then just make sure it has named instances on either end.)

Cheers!

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