My name is Thomas Mansencal and I'm the BDFL of Colour and the related projects at colour-science.
Colour is my contribution to Open Source Software with a library that people can use to validate their colorimetric computations and grow their knowledge about light and colour: Google engineers used it to improve Youtube colour processing correctness!
I'm also involved with many Open Source Software projects such as the Academy Color Encoding System (ACES) or OpenColorIO and try to spread as much as possible the knowledge about colorimetry.