# Glossary This document is intended to name and describe the concepts, functions and data structures inside Kaleidoscope. It is, as yet, incredibly incomplete. Entries should be included in dictionary order. When describing an identifier of any kind from the codebase, it should be written using identical capitalization to its use in the code and surrounded by backticks: `identifierName` Event handler : A function, usually provided by a `Plugin` that is run by a `Hook`