Usually in glass design you work with closed design - so the background fields are filled with glass - so here, for example, a colorless structural glass would be soldered. But in this design, the " background fields " are simply left blank.
For this type of glass star, Bullseye's plain opal glass is the best choice. This glass works well against any background, even in low light the colors come out beautifully.
This plant plug can also stand well as a modern glass object in a stone base.