By which I mean the type of interference paints/powders that actually change color depending on the direction of incoming light. Not glazes used to bias or blend other colors, or regular interference colors. I have a project where I want to use a blue-to-red color shifting effect as an overlay. I used to have a sample kit of automotive color shifting paint that came in 3 cans: a black undercoat, a color shifting clear, and a gloss clear overcoat. I just need the color shifting clear layer in blue-to-red. The particle size also needs to be as fine as feasible, not int terms of needle/nozzle compatibility, but because the subject is a small figure model. The effect will look better the more it appears to be a contiguous film instead of particulate "glitter". I've done some searching, but my results were heavily polluted by single-color interference and pearl paints falsely branded as "color shifting". Also I have no real experience with this sort of paint, so I have no idea what brands or lines are better than others.