Goggles highlights the modified region using pulse. Currently the commands undo, yank, kill and delete are supported.

This library is the holy counterpart of evil-goggles. Another comparable library is volatile-highlights, which does not use pulse. By setting goggle-pulse to nil, the goggles-mode behaves similarily to the volatile-highlights-mode.

(use-package goggles
  :hook ((prog-mode text-mode) . goggles-mode)
  :config
  (setq-default goggles-pulse t)) ;; set to nil to disable pulsing

Goggles is mainly meant as a replacement for the popular volatile-highlights (vhl).

• vhl does not support pulse. The request to use pulse for modification highlighting has come up a few times (e.g. recently on reddit).
• vhl is unmaintained and contains obsolete code (e.g. cl instead of cl-lib).
• vhl is unnecessarily complicated, with its extension mechanism. The extension mechanism seems to require bytecode compilation at startup.

Since improving volatile-highlights would require a rewrite, I decided to create another package. This way breakage for volatile-highlights users is avoided.