Font-palette not supported by Firefox?
Christine-Gertsch opened this issue · 9 comments
According to https://caniuse.com/?search=font-palette, font-palettes should be supported by all current browser versions. Still, Firefox doesn’t display Nabla’s palettes reliably (?). Further tests with other color fonts worked fine, so I wonder whether this is a browser problem or a font issue.
Perhaps Firefox prefers the SVG table over COLRv1? If I view https://nabla.typearture.com/ on Firefox it seems the variation axes also don't work.
in theory custom palettes should work because SVG table uses color variables referencing the CPAL table e.g. things like stop-color="var(--color8, #FFFABE)"
Do we know whether:
- Firefox indeed prefers SVG over COLRv1?
- Firefox supports CPAL for SVG?
Do we know whether:
Firefox indeed prefers SVG over COLRv1?
Firefox supports CPAL for SVG?
Maybe Jonathan knows @jfkthame
apparently my previous self seemed to know, googlefonts/nanoemoji#422 (comment)
We already know that FireFox does not support font-palette and @font-palette-values yet: https://bugzilla.mozilla.org/show_bug.cgi?id=1461588.
that linked issue above was marked as completed 1 year ago.. I'm not sure why then it is still not working
Do we know whether:
* Firefox indeed prefers SVG over COLRv1?
Yes, I think that's currently the case (though probably should be reconsidered)...
* Firefox supports CPAL for SVG?
No, CPAL is only supported for COLR fonts.
So I think this explains what you're seeing.
If you set gfx.font_rendering.opentype_svg.enabled to false in about:config, then you should see the COLRv1 glyphs being used.
So after all it is a browser issue, not a font issue.
yes, that’s it. Thanks!