So orbs can now take any number of material modifiers, and will layer them in concentric spheres? Fancy.
Also, nice touch on the stained glass. Looks neat!
No it is not like that (although I was considering exactly your idea too for a new type of orb
Basically the multiple materials are chosen randomly PER orb. So if you specify iron and gold ore for feature orb you will get both full iron ore orbs as well as full gold ore orbs.
The stained glass orbs are liquid orbs. They are filled with some liquid.