From what I can tell, it's a variable font, where the font developer can declare an axis (in this case "curve," or more likely "CURV") and the font user can con

From what I can tell, it's a variable font, where the font developer can declare an axis (in this case "curve," or more likely "CURV") and the font user can control the value of that axis (e.g. via CSS) which controls how the font renders itself. https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Fonts/Variable_fonts#introducing_the_variation_axis https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Font... This site demonstrates many highly stylized and artistic variable font axes: https://www.axis-praxis.org/specimens/__DEFAULT__ https://www.axis-praxis.org/specimens/__DEFAULT__