Leon Sans is a geometric sans-serif typeface made with code in 2019 by Jongmin Kim. It allows to change font weight dynamically and to create custom animations, effects or shapes in the Canvas element of HTML5. He designed the font to celebrate his newborn baby Leon.
There are live examples at https://leon-kim.com/examples/
Leon Sans font is made with code, it has coordinate values of the drawing points for each glyph. With the coordinate values, you can create custom shapes, effects or animations.