diff --git a/tmux.conf b/tmux.conf
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+# change the prefix from 'C-b' to 'M-a'
+unbind C-b
+set-option -g prefix M-a
+bind-key M-a send-prefix
+
+# start with window 1 (instead of 0)
+set -g base-index 1
+
+# start with pane 1
+set -g pane-base-index 1
+
+# split panes using | and -, make sure they open in the same path
+bind | split-window -h -c "#{pane_current_path}"
+bind - split-window -v -c "#{pane_current_path}"
+
+unbind '"'
+unbind %
+
+# open new windows in the current path
+bind c new-window -c "#{pane_current_path}"
+
+# reload config file
+bind r source-file ~/.tmux.conf
+
+unbind p
+bind p previous-window
+
+# shorten command delay
+set -sg escape-time 1
+
+# don't rename windows automatically
+set-option -g allow-rename off
+
+# mouse control (clickable windows, panes, resizable panes)
+set -g mouse on
+
+# Use Alt-arrow keys without prefix key to switch panes
+bind -n M-Left select-pane -L
+bind -n M-Right select-pane -R
+bind -n M-Up select-pane -U
+bind -n M-Down select-pane -D
+
+# enable vi mode keys
+set-window-option -g mode-keys vi
+bind -t vi-copy 'v' begin-selection
+bind -t vi-copy 'y' copy-selection
+
+# set default terminal mode to 256 colors
+set -g default-terminal "screen-256color"
+
+# fix pbcopy/pbpaste
+if 'command -v reattach-to-user-namespace >/dev/null' \
+    'set -gq @osx-pasteboard true'
+
+if 'tmux show -gv @osx-clipboard' \
+    'set -g default-command "reattach-to-user-namespace -l $SHELL"'
+
+# present a menu of URLs to open from the visible pane. sweet.
+bind-key u capture-pane \;\
+    save-buffer /tmp/tmux-buffer \;\
+    split-window -l 10 "urlview /tmp/tmux-buffer"
+
+
+######################
+### DESIGN CHANGES ###
+######################
+
+# panes
+set -g pane-border-fg black
+set -g pane-active-border-fg brightred
+
+## Status bar design
+# status line
+set -g status-justify left
+set -g status-bg default
+set -g status-fg colour12
+set -g status-interval 2
+
+# messaging
+set -g message-fg black
+set -g message-bg yellow
+set -g message-command-fg blue
+set -g message-command-bg black
+
+#window mode
+setw -g mode-bg colour6
+setw -g mode-fg colour0
+
+# window status
+setw -g window-status-format " #F#I:#W#F "
+setw -g window-status-current-format " #F#I:#W#F "
+setw -g window-status-format "#[fg=magenta]#[bg=black] #I #[bg=cyan]#[fg=colour8] #W "
+setw -g window-status-current-format "#[bg=brightmagenta]#[fg=colour8] #I #[fg=colour8]#[bg=colour14] #W "
+setw -g window-status-current-bg colour0
+setw -g window-status-current-fg colour11
+setw -g window-status-current-attr dim
+setw -g window-status-bg green
+setw -g window-status-fg black
+setw -g window-status-attr reverse
+
+# Info on left (I don't have a session display for now)
+set -g status-left ''
+
+# loud or quiet?
+set-option -g visual-activity off
+set-option -g visual-bell off
+set-option -g visual-silence off
+set-window-option -g monitor-activity off
+set-option -g bell-action none
+
+# The modes {
+setw -g clock-mode-colour colour135
+setw -g mode-attr bold
+setw -g mode-fg colour196
+setw -g mode-bg colour238
+
+# }
+# The panes {
+
+set -g pane-border-bg colour0
+set -g pane-border-fg colour19
+set -g pane-active-border-bg colour0
+set -g pane-active-border-fg colour9
+
+# }
+# The statusbar {
+
+set -g status-position bottom
+set -g status-bg colour18
+set -g status-fg colour137
+set -g status-attr dim
+set -g status-left ''
+set -g status-right '#[fg=colour233,bg=colour19,bold] %d/%m #[fg=colour233,bg=colour8,bold] %H:%M:%S '
+set -g status-right-length 50
+set -g status-left-length 20
+
+setw -g window-status-current-fg colour1
+setw -g window-status-current-bg colour19
+setw -g window-status-current-attr bold
+setw -g window-status-current-format ' #I#[fg=colour249]:#[fg=colour255]#W#[fg=colour249]#F '
+
+setw -g window-status-fg colour9
+setw -g window-status-bg colour18
+setw -g window-status-attr none
+setw -g window-status-format ' #I#[fg=colour237]:#[fg=colour250]#W#[fg=colour244]#F '
+
+setw -g window-status-bell-attr bold
+setw -g window-status-bell-fg colour255
+setw -g window-status-bell-bg colour1
+
+# }
+# The messages {
+
+set -g message-attr bold
+set -g message-fg colour232
+set -g message-bg colour16
+
+# }