fringe-mode

fringe-mode is an interactive compiled Lisp function in `fringe.el'.


(fringe-mode &optional MODE)

Set the default appearance of fringes on all frames.
When called interactively, query the user for MODE; valid values
are `no-fringes', `default', `left-only', `right-only', `minimal'
and `half-width'. See `fringe-styles'.

When used in a Lisp program, MODE should be one of these:
- nil, which means the default width (8 pixels).
- a cons cell (LEFT . RIGHT), where LEFT and RIGHT are
respectively the left and right fringe widths in pixels, or
nil (meaning the default width).
- a single integer, which specifies the pixel widths of both
fringes.
This command may round up the left and right width specifications
to ensure that their sum is a multiple of the character width of
a frame. It never rounds up a fringe width of 0.

Fringe widths set by `set-window-fringes' override the default
fringe widths set by this command. This command applies to all
frames that exist and frames to be created in the future. If you
want to set the default appearance of fringes on the selected
frame only, see the command `set-fringe-style'.