prelude 80 column dispay off

Question

How can I as an emacs prelude (-nw) user turn off the 80 column warning highlight seen here:

Answer 1

That effect comes from whitespace-mode, enabled by default in Prelude.

If you want to keep the effect but set it at a different column, you can set whitespace-line-column to a value you like. If you want to disable the effect, remove lines-tail from whitespace-style.

Make these changes in your ~/.emacs or init.el (which ever one you use). Something like the following would keep Prelude's default whitespace-mode settings but disable "greater than 80 column highlighting":

;; Change Prelude's default whitespace-mode settings
(setq whitespace-style '(face tabs empty trailing))

And the following should disable all whitespace-mode styling:

;; Turn off whitespace-mode styling
(setq whitespace-style nil)

If you don't care about whitespace-mode at all, you could unload it:

;; Disable whitespace-mode entirely
(unload-feature whitespace-mode)

Although, if another library relies on whitespace-mode, it may not be able to be unloaded.