diff --git a/.emacs.d/main.el b/.emacs.d/main.el
index faef8ab8..690798e3 100644
--- a/.emacs.d/main.el
+++ b/.emacs.d/main.el
@@ -149,3 +149,10 @@ browse-url-browser-function 'browse-url-generic)
 ;; forward-paragraph.
 (setq paragraph-start "
 ")
+
+;; Show matching parenthesis
+(show-paren-mode 1)
+;; By default, there’s a small delay before showing a matching parenthesis. Set
+;; it to 0 to deactivate.
+(setq show-paren-delay 0)
+
diff --git a/.emacs.d/plugins.el b/.emacs.d/plugins.el
index 8c582a98..766e9e6c 100644
--- a/.emacs.d/plugins.el
+++ b/.emacs.d/plugins.el
@@ -76,6 +76,7 @@
         (turn-off-auto-fill)
         (define-key mediawiki-mode-map (kbd "C-c RET") 'mediawiki-open-page-at-point)
         (define-key mediawiki-mode-map (kbd "C-c o") 'mediawiki-browse)
+        (local-unset-key (kbd "M-g"))
         ;; TODO: Bindings to not work???
         ;; (local-set-key (kbd "C-c l L") 'ltx-template-source-to-latex)
         ;; (local-set-key (kbd "C-c l U") 'ltx-template-source-to-usage)
@@ -94,3 +95,24 @@
 ;;       (doxymacs-font-lock)))
 ;; (add-hook 'font-lock-mode-hook 'my-doxymacs-font-lock-hook)
 
+
+;;==============================================================================
+;; Zlc
+;;==============================================================================
+;; Zsh style completion.
+
+(require 'zlc)
+(let ((map minibuffer-local-map))
+  ;;; like menu select
+  (define-key map (kbd "<down>")  'zlc-select-next-vertical)
+  (define-key map (kbd "<up>")    'zlc-select-previous-vertical)
+  (define-key map (kbd "<right>") 'zlc-select-next)
+  (define-key map (kbd "<left>")  'zlc-select-previous)
+
+  ;;; reset selection
+  (define-key map (kbd "C-c") 'zlc-reset)
+  )
+
+(setq zlc-select-completion-immediately t)
+
+;; To change style, M-x customize-face and input zlc-selected-completion-face.
diff --git a/.emacs.d/theme.el b/.emacs.d/theme.el
index 3fe21f81..31f56f8a 100644
--- a/.emacs.d/theme.el
+++ b/.emacs.d/theme.el
@@ -46,13 +46,10 @@
    (set-face-foreground 'ediff-odd-diff-A "black")
 ))
 
-;; FIXME: fix C functions color.
-(font-lock-add-keywords
- 'c-mode
- '(
-   ("&" . font-lock-keyword-face)
-   ("\\<\\(and\\|or\\|not\\)\\>" . font-lock-keyword-face)
-   ))
+;; Show paren.
+(set-face-background 'show-paren-match-face (face-background 'default))
+(set-face-foreground 'show-paren-match-face "#def")
+(set-face-attribute 'show-paren-match-face nil :weight 'extra-bold)
 
 ;; Make Emacs and Mutt colors fit.
 (font-lock-add-keywords
@@ -98,25 +95,33 @@
     c-mode python-mode
     latex-mode html-mode texinfo-mode))
 
-;; C-mode printf highlight.
-(defvar font-lock-format-specifier-face		'font-lock-format-specifier-face
-  "Face name to use for format specifiers.")
+;; FIXME: fix C functions color.
+;; (font-lock-add-keywords
+;;  'c-mode
+;;  '(
+;;    ("&" . font-lock-keyword-face)
+;;    ("\\<\\(and\\|or\\|not\\)\\>" . font-lock-keyword-face)
+;;    ))
 
-(defface font-lock-format-specifier-face
-  '((t (:foreground "OrangeRed1")))
-  "Font Lock mode face used to highlight format specifiers."
-  :group 'font-lock-faces)
+;; C-mode printf highlight.
+;; (defvar font-lock-format-specifier-face		'font-lock-format-specifier-face
+;;   "Face name to use for format specifiers.")
+
+;; (defface font-lock-format-specifier-face
+;;   '((t (:foreground "OrangeRed1")))
+;;   "Font Lock mode face used to highlight format specifiers."
+;;   :group 'font-lock-faces)
 
 ;; FIXME: disable highlighting outside of string.
-(add-hook
- 'c-mode-common-hook
- (lambda ()
-   (font-lock-add-keywords
-    nil
-    '(("[^%]\\(%\\([[:digit:]]+\\$\\)?[-+' #0*]*\\([[:digit:]]*\\|\\*\\|\\*[[:digit:]]+\\$\\)\\(\\.\\([[:digit:]]*\\|\\*\\|\\*[[:digit:]]+\\$\\)\\)?\\([hlLjzt]\\|ll\\|hh\\)?\\([aAbdiuoxXDOUfFeEgGcCsSpn]\\|\\[\\^?.[^]]*\\]\\)\\)"
-       1 font-lock-format-specifier-face t)
-      ("\\(%%\\)" 
-       1 font-lock-format-specifier-face t)) )))
+;; (add-hook
+;;  'c-mode-common-hook
+;;  (lambda ()
+;;    (font-lock-add-keywords
+;;     nil
+;;     '(("[^%]\\(%\\([[:digit:]]+\\$\\)?[-+' #0*]*\\([[:digit:]]*\\|\\*\\|\\*[[:digit:]]+\\$\\)\\(\\.\\([[:digit:]]*\\|\\*\\|\\*[[:digit:]]+\\$\\)\\)?\\([hlLjzt]\\|ll\\|hh\\)?\\([aAbdiuoxXDOUfFeEgGcCsSpn]\\|\\[\\^?.[^]]*\\]\\)\\)"
+;;        1 font-lock-format-specifier-face t)
+;;       ("\\(%%\\)" 
+;;        1 font-lock-format-specifier-face t)) )))
 
 ;; FIXME: Does not work.
 ;; (add-hook