This suggestion is to add 16 new blocks which are opaque to the light engine but rendered transparently.
There would be two crafting recipes for each Tinted Stained Glass:
One Dye plus eight Tinted Glass produces eight Tinted Stained Glass.
One Stained Glass plus four Amethyst Shards produces one Tinted Stained Glass.
Tinted glass recipe — 8 tinted glass = 4 glass + 16 amethyst
First suggested recipe — 8 tinted stained glass = 4 glass + 16 amethyst + 1 dye
Second suggested recipe: — 8 tinted stained glass = 8 glass + 32 amethyst + 1 dye
Maybe I’m doing my math wrong, but the second suggested recipe seems way more expensive.
Either way, I’m just unnecessarily nitpicking recipe numbers. The actual idea itself is cool.