osor_io

Good shout. I've sorted that out, or at least tried to. Apparently adding "muted" to the html <video> tag is not as straight forward as we'd all like it to be :(

Thanks! <3

That was very perceptive :D

It's because the points on that specific dot are defined the opposite direction clock-wise compared to the rest of the curves on that font. So the renderer interprets them as an inner contour and not an outer one.

As far as I could tell, orientation is defined as either TrueType (outer contours are clockwise) or as Postscript (outer contours are counter-clockwise). If I find a Postscript-style orientation I just flip them so the renderer sees a consistent input. But for some reason that dot either is avoiding the flip through FreeType or is defined the other way in the source font file itself.

A lot of renderers are agnostic to the orientation of the curves, but that can lead to its own issues and undesired filled/unfilled areas. So it's pick your poison here. IIRC Sebastian Lague also has to deal with it in his amazing video about rendering text.

I might go check the source font file and see what's up. This is Libre Baskerville which is Open-Source so maybe we can even fix it if it's an inconsistency at that level.

Good catch!

Author here, didn't expect the post to make it here! Thanks so much to everyone who's reading it and participating in the interesting chat <3