Seems like a spark or sparkline describes a bar graph, rendered inline in regular text. There is some font magic to render {30,60} as small bars in the text.

Nice, but the terms were new to me. Would have helped to explain them first.

Given that the OpenType font format is Turing-complete [0], I would challenge the “without code” claim. ;)

[0] https://litherum.blogspot.com/2019/03/addition-font.html

There has also been a commercial offering in this space for a while: FF Chartwell (https://typographica.org/typeface-reviews/chartwell/)

Previously:

https://news.ycombinator.com/item?id=23093815 (2020)

https://news.ycombinator.com/item?id=15223212 (2017)

While I like the idea of using it in a graphics application, I have to say that I do not see the advantage of using it in a web application instead of a simple CSS solution.

Can someone enlighten me as to what advantage a font solution would have for displaying bar charts?

It would be handy if this could work in markdown, but there’s no standard, I imagine it’s possible somehow dependent on the markdown parser.

I wonder what the accessibility implications are.

Why no demo image in GitHub readme?

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