I can't believe that this hasn't been thought of before now. While working on a plan to diffuse the individual Neopixels on the rear lighted appliqué, Artsci and Danal came up with a solution. They used small clear velcro to create a gap between the Neopixels and the diffuser film thus solving the problem. Soon after, Paul Carter mentioned using some kind of diffuser film to use on the front T to create a softer glow. With a little experimenting I think I've found a way to diffuse the LEDs on the front lighted T. I had a can of Frosted Glass in a spray can lying around. I sprayed quite a few coats on a small piece of saran wrap. I then put it on the side where the LEDs shine. It looks like it should work. Glad Artsci sent some spare 3M adhesives with each lighted T. I'll remove the T soon, spray the sides with the frosted glass and reapply the lighted T. It looks great with the frosted glass. The last picture is with the frosted saran wrap touching the lighted T. I can't see any individual LEDs. So far so good.