Install the auto-highlight-symbol package

All good IDEs (like Notepad++. LoL) have it.

customizations.el

@@ -10,8 +10,7 @@
  '(cursor-color "#5c5cff")
  '(cursor-type (quote bar))
  '(custom-enabled-themes (quote (tango-dark)))
- '(custom-file (concat user-emacs-directory
-                       "customizations.el"))
+ '(custom-file (concat user-emacs-directory "customizations.el"))
  '(custom-safe-themes
    (quote
     ("84d2f9eeb3f82d619ca4bfffe5f157282f4779732f48a5ac1484d94d5ff5b279"
@@ -35,6 +34,7 @@
      achievements
      ag
      alert
+     auto-highlight-symbol
      avy
      beacon
      bind-key

init.el

@@ -742,6 +742,11 @@
   :config
   (achievements-mode 1))
 
+(use-package auto-highlight-symbol
+  :ensure t
+  :config
+  (global-auto-highlight-symbol-mode t))
+
 ;; Load my own functions
 (load "gnu-c-header.el")
 (load "toggle-window-split.el")