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

So, if I understood the conversation correctly, the situation is the following:

- On Mac screens, 1 Web px = 1 Application pt
- When printing, 1 Web pt = 1 Application pt
- Per CSS, 1 Web px  = 0.75 Web pt

Fundamentally, this is an inconsistent system, and there is no winning.

WebKit chose to honor the "1 Web pt = 1 Application pt" equivalency when assigning optical size on screen. It's not clear what happens when printing, but this only leaves two options:

- Either continue to honor "1 Web pt = 1 Application pt", and have consistency between browser screen vs browser print—but not between browser print vs application, or
- Switch to honoring "1 Web pt = 1 Application pt", and have consistency between print output of browsers vs other applications—but not between browser screen vs browser print

Meanwhile, the people filing this issue would rather have printing be self-consistent and browser printing vs browser screen be consistent, and pay the price of making browser screen and application screen inconsistent.

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Received on Wednesday, 16 September 2020 17:15:51 UTC