The decals were printed on an ALPS MD5000 which prints white/gold so they are applied over whatever color you want the dial to be.
As far as lume, I've been using Glow, Inc watch lume and although it is easy to tint with acrylic paint, and glows all night, I'm not really happy with the surface "texture" and it dries rather translucent. This translucency requires you to have some light color (white, yellowish, etc) on the dial where your markers are as it will show through. I think the binder is a water-based latex as it seems a bit rubbery. I re-lumed a set of hands somebody sent me for a project with a Luminova kit he sent with them and I like the way it flowed out and looked so I ordered a kit and I'm fixin' to make another "Blue Snowflake" dial and will use the Luminova. I believe the Luminova kit uses a lacquer binder.