I’ve bought two different packs of liquid dyes (both had “UV resin” in the title on Amazon) and when I mix the white dye and sky blue dye in uncured resin, it looks like a cute and bright baby blue. Then, when I cure the peice under a UV light, the pretty blue turns dark grey! I’ve used dyes from both Magicfly and Miraclekoo, and mixing white dye with sky blue dye always comes out the same: gray. What can I do to get a cute, pastel, opaque blue in my uv resin??