The document libcolorsys.tex in the Doc/lib folder has an broken url referenced (http://www.inforamp.net/\% 7epoynton/ColorFAQ.html). I looked up the new url and found it to be at (http://www.poynton.com/ColorFAQ.html). I attached a patch which I created with windows (don't know if that messes up end-line characters). Please check if its correct before applying it.