The font family [Source Sans](https://en.wikipedia.org/wiki/Source_Sans) is designet
by [Paul D. Hunt](https://luc.devroye.org/fonts-42645.html),
based on Franklin Gothic.

The font family [Source Serif](https://en.wikipedia.org/wiki/Source_Serif) is designet
by [Frank Grießhammer](https://luc.devroye.org/fonts-55338.html)
as a complement to Source Sans,
based on the forms of [Pierre Simon Fournier](https://en.wikipedia.org/wiki/Pierre_Simon_Fournier).

The font family [Source Code Pro](https://en.wikipedia.org/wiki/Source_Code_Pro) is designet
by [Paul D. Hunt](https://luc.devroye.org/fonts-42645.html),
based on Franklin Gothic.