I did a little skittling with my R&B machine. I mostly went with cool white frosted for the GI, except for the upper and lower lane guides where I used Blue frosteds. I also put pink frosteds underneath the Nell table.
For the inserts, I changed the railroad lights to purple, the hat trick lights to red-green-blue, and the left outlane to yellow-orange-red-green instead of white-white-white-green.
Lastly, I changed the ramp lights from the original red to green as it made more sense to me.
There's a video showing some of the work I did here, though the camera makes the LEDs appear to flicker, and doesn't show their actual color very well: