Variable: hattr:filename
hattr:filename is a variable defined in hbut.el.
Value
".hypb"
Documentation
Per directory file name in which explicit button attributes are stored.
If you change its value, you will be unable to use buttons created by others who use a different value!
Source Code
;; Defined in ~/.emacs.d/elpa/hyperbole-20260414.325/hbut.el
;; Move up internal defvar
(defvar hattr:filename
(if hyperb:microsoft-os-p "_hypb" ".hypb")
"Per directory file name in which explicit button attributes are stored.
If you change its value, you will be unable to use buttons created by
others who use a different value!")