Variable: image-dired-dir
image-dired-dir is a customizable variable defined in
image-dired.el.gz.
Value
"~/.emacs.d/image-dired/"
Documentation
Directory where thumbnail images are stored.
The value of this option is ignored if Image-Dired is customized
to use the Thumbnail Managing Standard; they will be saved in
"$XDG_CACHE_HOME/thumbnails/" instead. See
image-dired-thumbnail-storage.
Probably introduced at or before Emacs version 29.1.
Source Code
;; Defined in /usr/src/emacs/lisp/image/image-dired.el.gz
(defcustom image-dired-dir (locate-user-emacs-file "image-dired/")
"Directory where thumbnail images are stored.
The value of this option is ignored if Image-Dired is customized
to use the Thumbnail Managing Standard; they will be saved in
\"$XDG_CACHE_HOME/thumbnails/\" instead. See
`image-dired-thumbnail-storage'."
:type 'directory)