APCA (Accessible Perceptual Contrast Algorithm) is a new method for predicting contrast for use in emerging web standards (WCAG 3) for determining readability contrast. APCA is derived form the SAPC (S-LUV Advanced Predictive Color) which is an accessibility-oriented color appearance model designed for self-illuminated displays.
Hey Kilian, just wanted to thank you again for your help — as you may have seen, I did a manual merge to the live site, so I'm going to close this PR for now,
Cleans up the HTML and CSS, extract inline styles to their own files.