Variable: image-dired-thumb-visible-marks
image-dired-thumb-visible-marks is a customizable variable defined in
image-dired.el.gz.
Value
t
Documentation
Make marks visible in thumbnail buffer.
If non-nil, apply the image-dired-thumb-mark face to marked
images.
This variable was added, or its default value changed, in Emacs 28.1.
Probably introduced at or before Emacs version 28.1.
Source Code
;; Defined in /usr/src/emacs/lisp/image-dired.el.gz
(defcustom image-dired-thumb-visible-marks t
"Make marks visible in thumbnail buffer.
If non-nil, apply the `image-dired-thumb-mark' face to marked
images."
:type 'boolean
:version "28.1")