Original file: http://zanshin.net/2013/09/05/my-tmux-configuration/

tmux.conf

set -g utf8
set-option -g default-shell /bin/zsh
set-window-option -g utf8 on

# make tmux display things in 256 colors
set -g default-terminal "screen-256color"

# set scrollback history to 10000 (10k)
set -g history-limit 10000

# use send-prefix to pass C-a through to application
bind C-a send-prefix

# shorten command delay
set -sg escape-time 1

# set window and pane index to 1 (0 by default)
set-option -g base-index 1
setw -g pane-base-index 1

# reload ~/.tmux.conf using PREFIX r
bind r source-file ~/.tmux.conf \; display "Reloaded!"

# use PREFIX | to split window horizontally and PREFIX - to split
# vertically
bind | split-window -h
bind - split-window -v

# Make the current window the first window
bind T swap-window -t 1

# map Vi movement keys as pane movement keys
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

# and use C-h and C-l to cycle thru panes
bind -r C-h select-window -t :-
bind -r C-l select-window -t :+

# resize panes using PREFIX H, J, K, L
bind H resize-pane -L 5
bind J resize-pane -D 5
bind K resize-pane -U 5
bind L resize-pane -R 5

# explicitly disable mouse control
setw -g mode-mouse off
set -g mouse-select-pane off
set -g mouse-resize-pane off
set -g mouse-select-window off

# copy & Paste
# use vim keybindings in copy mode
setw -g mode-keys vi

# setup 'v' to begin selection as in Vim
bind-key -t vi-copy v begin-selection
bind-key -t vi-copy y copy-pipe "reattach-to-user-namespace pbcopy"

# update default binding of 'Enter' to also use copy-pipe
unbind -t vi-copy Enter
bind-key -t vi-copy Enter copy-pipe "reattach-to-user-namespace pbcopy"

bind y run 'tmux save-buffer - | reattach-to-user-namespace pbcopy '
bind C-y run 'tmux save-buffer - | reattach-to-user-namespace pbcopy '

# colors
set-option -g pane-border-fg colour235 #base02
set-option -g pane-active-border-fg colour240 #base01

# colorize messages in the command line
set-option -g message-bg black #base02
set-option -g message-fg brightred #orange

# status Bar
set-option -g status on                # turn the status bar on
set -g status-utf8 on                  # set utf-8 for the status bar
set -g status-interval 5               # set update frequencey (default 15 seconds)
set -g status-justify centre           # center window list for clarity
# set-option -g status-position top    # position the status bar at top of
# screen

# visual notification of activity in other windows
setw -g monitor-activity on
set -g visual-activity on

# set color for status bar
set-option -g status-bg colour235 #base02
set-option -g status-fg yellow #yellow
set-option -g status-attr dim 

# set window list colors - red for active and cyan for inactive
set-window-option -g window-status-fg brightblue #base0
set-window-option -g window-status-bg colour236 
set-window-option -g window-status-attr dim

set-window-option -g window-status-current-fg brightred #orange
set-window-option -g window-status-current-bg colour236 
set-window-option -g window-status-current-attr bright