I used 0.5mm transparent silicone sheet as a base for some of my switch mods, I found some 1mm white sheet with a quick search but 0.5mm would be better I think. There must be some somewhere.
There is a fair bit experimentation involved in making your own switch boots, I know :weary:
You could make your own white gasket for the D4 from some heat resistant material (silicone sheet again?) to cover up the red MCPCB.
3Tronics is still coating lights for very reasonable prices, white might be available if you ask him via PM. Just some ideas :+1:
