IntermediateSurvival
Beacon in Minecraft: build the pyramid and pick the right power
Glass, Glass Panes, stained glass and Tinted Glass let the beam through.
Tested 26.3

Tinted Glass is dark glass that lets you see through but blocks all light.
It is made with the Crafting Table from Glass and 4 × Amethyst Shard.
Four Amethyst Shards around a block of Glass make two. Unlike normal glass, it drops itself when broken. It keeps mob farms dark while you watch them, and makes moody windows.
4 × Amethyst Shard + Glass → 2 × Tinted Glass
// Slots with several items cycle through every accepted option.
Glass, Glass Panes, stained glass and Tinted Glass let the beam through.
At the Crafting Table: 1 × Glass and 4 × Amethyst Shard give 2 × Tinted Glass. Mining the block drops it.
It is see-through glass that blocks light.
Placed under a Note Block, Tinted Glass gives the Hi-hat sound.