is a variable defined in `
Its value is
- Automatically becomes buffer-local when set.
If non-nil, show cursor position of each item decoration.
This is for debugging purposes, and generally set at need in a
buffer rather than as a prevailing configuration (but it's handy
to publicize it by making it a customization variable).
You can customize this variable.
This variable was introduced, or its default value was changed, in
version 24.1 of Emacs.