Are we talking the head itself or the plastics?
I like the look of painted heads with similar colored plastics but I'd guess I've had as much success throwing an unpainted head, regardless of plastic color as I have trying to match head / body.
That said, I can tell you I caught a bunch of fish over the years throwing t-rigs with unpainted bullet lead weights, tru-turn hooks and original Stren line, no matter the worm style or color. This was all before tungsten weights, 300 brands of lines, etc...
The amount of products (not just lures) over the years have really made a lot of people over-think how to catch fish.