Choroma

This page is a temporary stub, because the concept that it covered came up enough to be worth explaining but we haven't had time to write a full article about it. It will eventually be replaced by a more in-depth article.

A choroma is a collection of planes that are in some way closely connected, usually because it is easier to travel between these planes than it is to travel between any of them and a plane outside the choroma, but sometimes because they share similar origins, contents, or conditions.