I've been slowly expanding and improving my humble home theater and finally had the chance to paint the walls and ceiling a flat black. I knew that there would be an improvement but I was absolutely blown away how much better it is. I was also surprised when I re calibrated my projector, a JVC RS45, I was able to get the gamma and grayscale even more dialed in than I had previously. Overall very pleased with the improvement this low cost change has made. I think my next changes need to be an addition of an anamorphic lens, a Lumagen radiance so I can dial in calibration further, and replacing the carpet with something much darker. All out of my budget for now, but we'll see what the future holds. See the attached photos.
Theater Equipment list: JVC RS45, Denon 2112CI, Oppo BDP-103, Mains: Paradigm Monitor 7 V6, Center: Paradigm Monitor CC290 V6, Sides: Paradigm Atom V6, Rears: Polk TSI100. Monster Power HTS-5100