diff --git a/init.org.d/50-ui.org b/init.org.d/50-ui.org
index c3ef5c3..528337e 100644
--- a/init.org.d/50-ui.org
+++ b/init.org.d/50-ui.org
@@ -5,20 +5,19 @@ this file/section configures the UI settings
 
 * Toolbar and Scrollbar
    removing this stuff makes emacs looks more cleaner
-#+begin_src emacs-lisp
-  (tool-bar-mode -1)
-  (menu-bar-mode 1)
-  (scroll-bar-mode -1)
-#+end_src
+
+   #+begin_src emacs-lisp
+     (tool-bar-mode -1)
+     (menu-bar-mode -1)
+     (scroll-bar-mode -1)
+  #+end_src
  
 * Maximize
    Start emacs as a maximized window at start
-   
-   #+BEGIN_SRC emacs-lisp
 
+   #+begin_src emacs-lisp
      ;; (add-hook 'window-setup-hook 'toggle-frame-maximized t)
-
-   #+END_SRC
+   #+end_src
 
 * Window Size
 Set the default window size when making a new frame
@@ -116,6 +115,11 @@ sets the tab size 5 spaces
      ;; (display-time-mode)
    #+END_SRC
 
+* Focus on Hover
+#+begin_src emacs-lisp
+  (setq mouse-autoselect-window t)
+#+end_src
+
 * Ligatures
 #+begin_src emacs-lisp
   ;; (when (> emacs-major-version 28)
diff --git a/init.org.d/70-lang.org b/init.org.d/70-lang.org
index 5b2e935..738abe7 100644
--- a/init.org.d/70-lang.org
+++ b/init.org.d/70-lang.org
@@ -16,7 +16,7 @@
 * Built-in Modes
 ** hook default settings to configured language modes
 #+begin_src emacs-lisp
-  (let ((langs '("sh" "c++" "mhtml" "java" "js" "json" "python" "latex" "typescript-ts" "tsx-ts")))
+  (let ((langs '("sh" "c++" "mhtml" "java" "js" "json" "python" "LaTeX" "typescript-ts" "tsx-ts")))
     (dolist (lang langs)
       (add-hook (intern (concat lang "-mode-hook")) (lambda () (lang-default-settings)))))
 #+end_src
@@ -96,6 +96,22 @@ No longer using typescript-mode, as there's a builtin typescript-ts mode in Emac
            ("\\.jsonl\\'" . json-mode)))
 #+end_src
 
+** LaTeX (AUCTeX)
+
+#+begin_src emacs-lisp
+      (use-package tex
+        :ensure auctex
+        :custom
+        (TeX-view-program-selection '((output-pdf "PDF Tools")) "set emacs as pdf viewer")
+        (TeX-source-correlate-start-server t "recommended setting")
+        (TeX-engine 'xetex "set engine to xelatex")
+        (TeX-PDF-mode t "use pdf mode")
+        (TeX-auto-save t "recommended setting")
+        (TeX-parse-self t "packages support")
+        :config
+        (add-hook 'TeX-after-compilation-finished-functions #'TeX-revert-document-buffer))  
+#+end_src
+
 ** Python
 *** Pyenv
 python venv manager