Ok I'm pretty sure there is a topic on this somewhere but I need to ask anyway. I don't keep my customs in cases or by the windows, but over the years I noticed yellowing on some of the ponies I painted white.. More notably on my First G4 custom that I gave a FBR.
What normally causes Ponies who are given white FBRs to yellow over the years? None of my ponies are anywhere near a window but I do use daylight bulbs in my room due to the fact they give me better light than normal bulbs.