If you need help using them to gather colours, @YoHoJo; has made a video tutorial that shows how here
Or if you prefer text, there is a more up to date tutorial by @The Mayor; that includes a section on ACA here
cosmasjdz
2014-07-19 06:57:53
my values week ago used to be I suggest to look for the whitest part of spawned rock and make sure tolerance doesnt come in range with mined rock brightest spot. by the way values change. changed color in 3 weeks twice. COLOR = 11268088; //7449049; TOL = 3; //4//3 IHUE = 0.11;//0.63 SAT = 1.09;//0.67