Mona Sans (and Hubot Sans) showcase

What's notable: GitHub's open-source variable type family. The marketing/showcase page demonstrates the variable axes (weight, width) interactively — sliders that morph the letterforms in real time. Pairs Mona Sans (geometric, GitHub's marketing face) with Hubot Sans (slightly different proportions, used as a sibling). Both released under OFL, used across GitHub's marketing and product surfaces.

Why this matters as a reference: the canonical example of how a modern variable typeface should be presented — interactive specimens, axes shown explicitly, licensing called out. Reference for any future "RDCO type system" page.

Related

• [[06-reference/design-mood-board/source-serif-showcase|Source Serif showcase]] — equivalent for serif
• [[06-reference/design-mood-board/klim|Klim]] — commercial-foundry equivalent
• [[06-reference/design-mood-board/vercel|Vercel]] — Geist Sans is similar territory
• [[06-reference/concepts/design-vocabulary-glossary#geometric-sans|geometric sans]]
• [[06-reference/concepts/design-vocabulary-glossary#variable-font|variable font]]