This is an interesting conversation. I'll add a couple of thoughts.
As for lighting, your best option is "full spectrum" lighting, as it is closest to natural daylight so that you see your colors in the truest possible light, so to speak. LOL. The Ott lights are full spectrum. I know you can get florescent tubes in full spectrum, too. Better for your health, also.
For flooring, look at the Marmoleum products. They have some linoleum-type squares in many great colors. They're earth-friendly, too - their flooring is free from the toxic glues and binders that continue to off-gas and be not so great to breathe.
Then for color....every color has a frequency, a vibration. The color orange is the "creative" color. You don't have to paint your walls orange, but consider adding a derivative of that color somewhere. The walls in my studio are a sort of Terra Cotta/Salmon color. If you're into stones, the Carnelian has energies/properties to stimulate creativity!
Have fun coming up with what feels right for you
Jan in Spokane