ha, I've seen shots of your bikes before, but I dont recall ever noticing the multi coloured crank bolts before!
Hey, as your bikes show, goofing around with colour accents and stuff is fun, and coming from a visual background, playing around with visual stuff is all good. Makes the world less blah, and having fun and enjoying this sport of ours is what it's all about.
(forgot about my early 90s purple Ortliebs, still have one in the household and it refuses to die, although it has faded a heck of a lot)
Take a look at the valve caps and spoke nipples
And, although you can really see them, the bolts on the brake rotors follow the same pattern.