Banners are used for a variety of reasons in Minecraft, but you can't use them until you learn how to make one.

Minecraft 1.19 is slated to release pretty soon, and here is How to Get Frog Light in Minecraft of different colors.

Crafting Froglights in Minecraft To make a Froglight, you’ll need to make a Frog eat a tiny Magma Cube. The problem is that these two mobs spawn in pretty different places. Frogs can be found in ...