.tmux.conf

assume-paste-time 1
base-index 0
bell-action any
bell-on-alert off
default-command ""
default-shell "/bin/bash"
destroy-unattached off
detach-on-destroy on
display-panes-active-colour red
display-panes-colour blue
display-panes-time 1000
display-time 750
history-limit 2000
lock-after-time 0
lock-command "lock -np"
message-command-style fg=yellow,bg=black
message-style fg=black,bg=yellow
mouse off
mouse-utf8 on
prefix c-b
prefix2 <none>
renumber-windows off
repeat-time 500
set-remain-on-exit off
set-titles off
set-titles-string "#s:#i:#w - "#t" #{session_alerts}"
status on
status-interval 15
status-justify left
status-keys emacs
status-left "[#s] "
status-left-length 10
status-left-style default
status-position bottom
status-right " "#{=21:pane_title}" %h:%m %d-%b-%y"
status-right-length 40
status-right-style default
status-style fg=black,bg=green
status-utf8 on
update-environment "display ssh_askpass ssh_auth_sock ssh_agent_pid ssh_connection windowid xauthority"
visual-activity off
visual-bell off
visual-silence off
word-separators " -_@"


######################
### design changes ###
######################

# panes
set -g pane-border-fg black
set -g pane-active-border-fg brightred

## status bar design
# status line
set -g status-utf8 on
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

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

# }
#switch panels
bind k selectp -u # switch to panel up
bind j selectp -d # switch to panel down 
bind h selectp -l # switch to panel left
bind l selectp -r # switch to panel right
set -g default-terminal "screen-256color"

nice features!
thanks!