OHHHH! i get it now, for some reason i had the idea in my head that D0 would be going to Q7, i see what you mean. Whoops, brain fart. forgot that each individual led in the RGB was controlled with an individual pin...
So it will act just like a shift register, like this tutorial?
except in that tutorial it shows the 595 driving leds....hmmmm.
So what does it mean about the OE bringing the chip into a high impedance state? It will still work with that connected to ground?
( nice diagram by the way, your pretty pro.)