diff --git a/configuration.org b/configuration.org
index 29051e7e0b69305fc55b40b4a0fc3dfb47e2ce5a..f19ce16c611c04594f1161d300ce05f38b62f7dc 100644
--- a/configuration.org
+++ b/configuration.org
@@ -262,6 +262,12 @@ Some of my configuration entries where borrowed from other people, see
   )
    #+END_SRC
 
+   Use Fira Code with ligature
+
+   #+begin_src emacs-lisp
+(use-package fira-code-mode
+  :config (global-fira-code-mode))
+   #+end_src
 
 
 ** Modeline
@@ -347,6 +353,8 @@ Some of my configuration entries where borrowed from other people, see
   (org-src-tab-acts-natively t)
   ;; IDO for completion when applicable
   (org-completion-use-ido t)
+  ;; hide emphasis markers
+;;  (org-hide-emphasis-markers t)
   :config
   ;; (require 'org-tempo)
   (add-hook 'org-mode-hook 
@@ -359,9 +367,17 @@ Some of my configuration entries where borrowed from other people, see
                        )))))
    #+END_SRC
 
-   #+RESULTS:
-   : t
+   Add a shortcut to toggle display of emphasis characters
 
+   #+begin_src emacs-lisp
+(defun org-toggle-emphasis ()
+  "Toggle hiding/showing of org emphasize markers."
+  (interactive)
+  (if org-hide-emphasis-markers
+      (set-variable 'org-hide-emphasis-markers nil)
+    (set-variable 'org-hide-emphasis-markers t)))
+(define-key org-mode-map (kbd "C-c e") 'org-toggle-emphasis)
+   #+end_src
 
    Use =org-mode= for the initial scratch buffer
 
@@ -395,6 +411,10 @@ Some of my configuration entries where borrowed from other people, see
   (add-hook 'org-mode-hook 'org-bullets-mode))
    #+end_src
 
+   #+begin_src emacs-lisp
+(set-face-foreground 'org-verbatim "orange1")
+   #+end_src
+
 ** Task management
 
    Record when a todo item was marked as done and enforce marking
@@ -514,6 +534,16 @@ Some of my configuration entries where borrowed from other people, see
    #+end_src
 
 
+** Tree slide
+
+   #+begin_src emacs-lisp
+(use-package org-tree-slide
+:config
+(define-key org-mode-map (kbd "<f8>") 'org-tree-slide-mode)
+)
+   #+end_src
+
+
 ** Export configuration
 
    I use =org-mode= to export to LaTeX, (beamer and article) markdown and to HTML