README.md

marginalia.el - Marginalia in the minibuffer

This package provides marginalia-mode which adds marginalia to the minibuffer completions. Marginalia are marks or annotations placed at the margin of the page of a book or in this case helpful colorful annotations placed at the margin of the minibuffer for your completion candidates. The annotations are added based on the completion category. For example find-file reports the file category and M-x reports the command category. You can choose between more or less detailed annotators, by setting the variable marginalia-annotators.

Since many commands do not report a completion category themselves, Marginalia provides a classifier system, which tries to guess the correct category based for example on the prompt (see the variable marginalia-prompt-categories). Usually these heuristic classifiers work well, but if they do not there is always the possibility to overwrite categories by command name. This way you can associate a fixed category with the completion initiated by the command (see the variable marginalia-command-categories). The list of available classifiers is specified by the variable marginalia-classifiers.

Configuration

;; Enable richer annotations using the Marginalia package
(use-package marginalia
  ;; The :init configuration is always executed (Not lazy!)
  :init

  ;; Must be in the :init section of use-package such that the mode gets
  ;; enabled right away. Note that this forces loading the package.
  (marginalia-mode)

  ;; Enable richer, more heavy, annotations.
  ;; E.g. M-x will show the documentation string additional to the keybinding.
  ;; By default only the keybinding is shown as annotation.
  (setq marginalia-annotators 'marginalia-annotators-heavy))