I have thought about it many times and i thought it would look quite nice actually.
i think he should add stained glass or something.
Like were you use dyes and glass to somehow alter the color of glass not alot to make it a completely dark blue glass block but just a small tint.
And when the sun lights through it it makes the light a slight different color.
I know the wording isnt all that great but its just an idea i had.
And sorry if this is already brought up but the search bar sucks ass and never works so meh.