This is my actual tmux-configuration running on windows w. babun

.tmux.conf

# Use C-a as prefix and free C-b
set -g prefix C-a
unbind C-b

# Send C-a to application by pressing it twice
bind C-a send-prefix

# Reload configuration file
unbind r
bind r source-file ~/.tmux.conf \; display ".tmux.conf reloaded!"

# Redefine splitting shortcuts
bind | split-window -h \; display "Splitting Vertical"
bind - split-window -v \; display "Splitting Horizontal"

# Enable mouse mode and pane selection
set -g mouse on

# Toggle mouse on
bind m \
    set -g mode on \;\
    display 'Mouse: ON'

# Toggle mouse off
bind M \
    set -g mode off \;\
    display 'Mouse: OFF'

# Titles (window number, program name, active (or not)
set-option -g set-titles on
set-option -g set-titles-string '#H:#S.#I.#P #W #T'

# Pane Selection
bind -n C-left select-pane -L
bind -n C-down select-pane -D
bind -n C-up select-pane -U
bind -n C-right select-pane -R

# Sync tmux panes (replicates input from one pane to the others)
bind p setw synchronize-panes
set -g default-terminal "screen-256color"

# 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 colour235
set -g pane-border-fg colour238
set -g pane-active-border-bg colour236
set -g pane-active-border-fg colour51

# }
# The statusbar {

set -g status-position bottom
set -g status-bg colour234
set -g status-fg colour137
set -g status-attr dim
set -g status-left ''
set -g status-right '#[fg=colour233,bg=colour241,bold] %d/%m #[fg=colour233,bg=colour245,bold] %H:%M:%S '
set -g status-right-length 50
set -g status-left-length 20

setw -g window-status-current-fg colour81
setw -g window-status-current-bg colour238
setw -g window-status-current-attr bold
setw -g window-status-current-format ' #I#[fg=colour250]:#[fg=colour255]#W#[fg=colour50]#F '

setw -g window-status-fg colour138
setw -g window-status-bg colour235
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 colour166

# }