Oneironaut Forge

Oneironaut: One who explores dream worlds (See link for pronounciation)

Have you ever despaired at the fact that Hex Casting has essentially no dimension-related features? Well, here you go!

This addon adds several things:

A spell to teleport yourself and other entities between dimensions
Doesn't work on other players, so you can't just yeet someone into the end void.
A spell to teleport structures between dimensions
Domain Expansion, anyone?
A couple of actions that give you dimension iotas, which are necessary to use the aforementioned dimensional spells
A spell that transmutes various blocks into other blocks, including a gateway to a new dimension
A spell to re-color conjured lights, blocks, and similar
Wisp Lanterns, a decorative light-emitting block that you can give one of base Hex's pigments in order to have it mimic it. There's also a tinted version that doesn't emit light.
The Reverberating Rod, a casting item that casts its hex every tick while you hold rclick on it. It comes with a suite of patterns designed to interact with its special features.
The Noosphere, the aforementioned new dimension.