         (setq snails-candiate-list-update-p t)
         ))))
 
+(defun snails-get-backend-names ()
+  (mapcar (lambda (b) (eval (cdr (assoc "name" (eval b))))) snails-backends))
+
 (defun snails-render-bufer ()
   (with-current-buffer snails-content-buffer
     (erase-buffer)
 
     (let ((candiate-index 0)
-          (backend-names (mapcar (lambda (b) (eval (cdr (assoc "name" (eval b))))) snails-backends)))
+          (backend-names (snails-get-backend-names)))
       (dolist (candiate-list snails-candiate-list)
         (when candiate-list
           (insert (propertize
                    (format "%s\n" (nth candiate-index backend-names))
-                   'face 'snails-face-backend-name))
+                   'face `(
+                           :foreground "#3F90F7"
+                           :weight 'bold
+                           :height 130
+                           :underline t
+                           )))
           (dolist (candiate candiate-list)
-            (insert (format " %s\n" (string-trim-left (car candiate)))))
+            (insert (format "%s\n" (string-trim-left (car candiate)))))
           (insert "\n"))
         (setq candiate-index (+ candiate-index 1)))
 

(defun snails-update-callback (backend-name input-ticker candidates)
  (when (and (equal input-ticker snails-input-ticker)
             candidates)
    (let* ((backend-names (mapcar (lambda (b) (eval (cdr (assoc "name" (eval b))))) snails-backends))
           (backend-index (cl-position backend-name backend-names)))
      (when backend-index
        (setq snails-candiate-list (snails-update-list-by-index snails-candiate-list backend-index candidates))

(defcustom snails-mode-hook '()
  "snails mode hook."
  :type 'hook
  :group 'snails)

(defvar snails-mode-map
