Variable: cua--rectangle-overlays
cua--rectangle-overlays is a buffer-local variable defined in
cua-rect.el.gz.
Documentation
List of overlays used to display current rectangle.
Source Code
;; Defined in /usr/src/emacs/lisp/emulation/cua-rect.el.gz
(defvar-local cua--rectangle-overlays nil
"List of overlays used to display current rectangle.")