Spacemacs: How can I customize the highlight style of a matching parenthesis?

Question

How do I change, in my .spacemacs, the style used to highlight the matching parenthesis?

Answer 1

You can see a list with all the colors set by emacs with M-xlist-faces-display RET.

There you can search for the faces corresponding to parenthesis matching: show-paren-match in this case. If you click on it to customize it, test it or even save it. If you choose to save, this setting will be saved to your custom-file (C-hvcustom-fileRET - for more info).

If you want to directly set the face in your .spacemacs you could use custom-set-faces

(custom-set-faces
 '(show-paren-match ((t (:foreground "white" :background "red")))))

or use your theme name with custom-theme-set-faces:

(custom-theme-set-faces
 'your-theme-name-here ;; e.g. 'spacemacs-dark
 '(show-paren-match ((t (:foreground "white" :background "red")))))

or by using the theming layer

(setq theming-modifications 
'((your-theme-name ;; e.g. spacemacs-dark
       (default :foreground "white" :background "red"))))

or by using set-face-attribute

(set-face-attribute 'show-paren-match nil :foreground "white" :background "red")

Answer 2

Would leave comment but don't have the reputation yet. For me it was Highlight-Parentheses minor mode. I use spacemacs so its likely what was bothering you too.