Re: [csswg-drafts] [css-fonts-5] Details of `format()` and `technology()` values (#6864)

For `variations`, I agree, `variations-cff2` should clearly be separate. Multiple tables affect variations though. Not sure on a good name for the truetype-glyphs variations.

For `incremental` I am unsure, particularly since there are two methods for incremental (range request, and patch-subset) and it is envisaged that some implementations might only support range request.. 

It isn't exactly a format (it applies to any sfnt font format) but yeah it isn't exactly a rendering technology either. Indeed incremental is **forbidden from affecting rendering**:

> When a subsetted font is used to render text using any combination of the subset codepoints it must render identically to the original font. This includes any optional features that a renderer may choose to use from the original font such as hinting instructions, positioning rules, and/or glyph substitutions. 
> https://w3c.github.io/IFT/Overview.html#font-subset

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Received on Wednesday, 8 December 2021 17:54:02 UTC