Customising display-fill-column-indicator-mode

[wilnerthomas]

Had a go at changing the colour of the line to green, but it is not getting 
changed.

Is there any way to use a bigger width for the indicator line because I find it 
to be too thin.

Finally, using  `add-hook'  with  `lisp-interaction-mode-hook'  did not display 
the indicator.

(defun galaxy-colum ()
  "TODO"

  (let ( (global-colum nil) )

    (if (eq global-colum nil)

(progn
  (add-hook 'prog-mode-hook
    #'display-fill-column-indicator-mode)
  (add-hook 'org-mode-hook
    #'display-fill-column-indicator-mode)
  (add-hook 'text-mode-hook
    #'display-fill-column-indicator-mode)
  (add-hook 'lisp-interaction-mode-hook
    #'display-fill-column-indicator-mode))

      (global-display-fill-column-indicator-mode)) )

  (set-face-foreground 'fill-column-indicator "green"))