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

Stained Glass is glass tinted with a dye, in 16 translucent colors.
It is made with the Crafting Table from 8 × Glass and White Dye.
Surround a dye with eight Glass to get eight stained glass. Like glass, it breaks without dropping anything unless you use Silk Touch.
Light passes through it, and a beacon beam crossing it takes its color; stacking several colors mixes them. Stained glass is used for windows, colored lamps and decorative floors.
8 × Glass + White Dye → 8 × White Stained 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: 8 × Glass and 1 × White Dye give 8 × Stained Glass. Mined with Silk Touch, the block drops itself; without it, it drops nothing.
It is translucent colored glass that also tints beacon beams. It is an ingredient in one recipe: White Stained Glass Pane.
Placed under a Note Block, Stained Glass gives the Hi-hat sound.