custom-toggle-hide-face

custom-toggle-hide-face is a compiled Lisp function in `cus-edit.el'.

(custom-toggle-hide-face VISIBILITY-WIDGET &rest IGNORE)

Toggle the visibility of a `custom-face' parent widget.
By default, this signals an error if the parent has unsaved
changes. If the parent has a `simple' :custom-style property,
the present value is saved to its :shown-value property instead.