Invalid options with Tmux 2.9 about dotfiles HOT 3 CLOSED

set -g default-terminal "screen-256color"
source-file ~/dotfiles/tmux/tmux-keybindings.conf
set -g focus-events on

# don't rename windows automatically
set-option -g allow-rename off

# Enable mouse mode (tmux 2.1 and above)
set -g mouse on

# http://www.hamvocke.com/blog/a-guide-to-customizing-your-tmux-conf/
######################
### DESIGN CHANGES ###
######################

# panes
set -g pane-border-style 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-style bg=default
set -g status-style fg=colour12
set -g status-interval 2

# messaging
set -g message-style fg=black
set -g message-style bg=yellow
set -g message-command-style fg=blue
set -g message-command-style bg=black

#window mode
setw -g mode-style bg=colour6
setw -g mode-style 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-style bg=colour0
setw -g window-status-current-style fg=colour11
setw -g window-status-current-style dim
setw -g window-status-style bg=green
setw -g window-status-style fg=black
setw -g window-status-style 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-style bold
setw -g mode-style fg=colour196
setw -g mode-style bg=colour238

# }
# The panes {

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

# }
# The statusbar {

set -g status-position bottom
set -g status-style bg=colour234
set -g status-style fg=colour137
set -g status-style dim
set -g status-left ''
set -g status-right '#[fg=colour233,bg=colour245,bold] %A %-I:%M #[fg=colour255,bg=colour000] #(whoami)@#H'
set -g status-right-length 50
set -g status-left-length 20

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

setw -g window-status-style fg=colour138
setw -g window-status-style bg=colour235
setw -g window-status-style none
setw -g window-status-format ' #I#[fg=colour237]:#[fg=colour250]#W#[fg=colour244]#F '

setw -g window-status-bell-style bold
setw -g window-status-bell-style fg=colour255
setw -g window-status-bell-style bg=colour1

# }
# The messages {

set -g message-style bold
set -g message-style fg=colour232
set -g message-style bg=colour166

# }