Light gold is plain gold and looks like fools gold; yellow gold is deeper and more yellow.
Copper penny is what a copper penny looks like new, except buffed; light copper is more faded, more silvery; almond is a light brown-silver; light blue is a blue-silver.
hologram looks different in different sizes but give a rainbow affect, especially in .008 powder put in clear plastic.
Different shades of green are very different in clear plastic:
kelly green is bright green; lime is kelly green intensified; chartreuse is yellow green; emerald green is just like the gem and the most subdued.
It was suggested that various glitter colors could approximate different crankbait colors and for certain color patterns, dye would do better and black flake or Spike-It for spots. Florescent colors are not supplied, but most others are.
The thing about emphasizing glitter color is to keep the plastic a light shade and very translucent. Opaque plastic (with salt or opaque dye) only allows surface glitter to show itself and the effect is lost. Some of LC flor. dyes aren't really florescent, just like LC's purple is really blue grape, in dye and glitter.
Each general hue (blue, purple, green etc.) is a category of many subhues and really makes a big difference when trying to match a particular color scheme. Marigold is orange-gold (like the flower) and very unique.
Sam