[btco_code]

Ha! You noticed it! :-D I memorized it as 1=blue, 2=red, 4=green and then you add the numbers to make the combinations. So magenta is red+blue so it's 1+2 = 3 and cyan is blue+green with is 1+4 = 5.

[garganzol]

And white is 1+2+4 = 7. Wow, it makes so much sense now.