New Level Design

I'm designing a new level called Primary Colours, its based on a 15x15 square containing blocks of primary colours (r,g,b) with a function performed on them.

Its not amazingly hard (i'd say Medium difficulty) but it is a bit of a pain in the ass to code a solution for (Useage of arrays, hex, binary and MD5)

I'll have submitted it next week some time, just so i can check my answers etc... heh i hope its accepted. If it goes down well i'll write a cube version which should be harder :)