diff --git a/README.md b/README.md
index b0efdfd..8960291 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ This config folder includes `i3` and `alacritty` config, however, I'm using [dwm
 
 # Important stuff:
 ## Ranger
-use pip install `ueberzug` and `ranger-git`
+use `pip install ueberzug` and `ranger-git`
 
 ## mutt
 In `~/.gnupg/gpg-agent.conf`:
diff --git a/ranger/rc.conf b/ranger/rc.conf
index 7bedb27..5083c58 100755
--- a/ranger/rc.conf
+++ b/ranger/rc.conf
@@ -394,6 +394,9 @@ map y. yank name_without_extension
 
 # Filesystem Operations
 
+# diff
+map df console open_with colordiff
+
 map M console mkcd%space
 
 map + chmod
diff --git a/zsh/zshrc b/zsh/zshrc
index 4f12fbc..c418bf7 100644
--- a/zsh/zshrc
+++ b/zsh/zshrc
@@ -83,9 +83,10 @@ zle -N zle-keymap-select
 KEYTIMEOUT=1
 
 # fzf
-export FZF_DEFAULT_OPTS='--bind ctrl-e:down,ctrl-u:up --preview "[[ $(file --mime {}) =~ binary ]] && echo {} is a binary file || (ccat --color=always {} || highlight -O ansi -l {} || coderay {} || rougify {} || cat {}) 2> /dev/null | head -500"'
+export FZF_DEFAULT_OPTS='--bind ctrl-e:down,ctrl-u:up --preview "[[ $(file --mime {}) =~ binary ]] && echo {} is a binary file || (ccat --color=always {} || highlight -O ansi -l {} || cat {}) 2> /dev/null | head -500"'
 export FZF_DEFAULT_COMMAND='ag --hidden --ignore .git -g ""'
 export FZF_COMPLETION_TRIGGER='\'
 export FZF_TMUX_HEIGHT='80%'
+export FZF_PREVIEW_COMMAND='[[ $(file --mime {}) =~ binary ]] && echo {} is a binary file || (ccat --color=always {} || highlight -O ansi -l {} || cat {}) 2> /dev/null | head -500'
 source ~/.config/zsh/key-bindings.zsh
 source ~/.config/zsh/completion.zsh