tmux.conf for v2.6

.tmux.conf

set -g mouse on

setw -g mode-keys vi

# 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

# Shift arrow to switch windows
bind -n S-Left  previous-window
bind -n S-Right next-window

# scrollback buffer size increase
set -g history-limit 100000

# change window order
bind-key -n C-S-Left swap-window -t -1
bind-key -n C-S-Right swap-window -t +1

# disable window name auto change
set-option -g allow-rename off

# bar color
set -g status-bg black
set -g status-fg white

# toggle pane title visibility
bind T run 'zsh -c "arr=( off top ) && tmux setw pane-border-status \${arr[\$(( \${arr[(I)#{pane-border-status}]} % 2 + 1 ))]}"'
# rename pane
bind t command-prompt -p "(rename-pane)" -I "#T" "select-pane -T '%%'"

위에거 지우고 이거로 변경

# toggle pane title visibility
bind T run 'zsh -c "arr=( off top ) && tmux setw pane-border-status \${arr[\$(( \${arr[(I)#{pane-border-status}]} % 2 + 1 ))]}"'
# rename pane
bind t command-prompt -p "(rename-pane)" -I "#T" "select-pane -T '%%'"

ctrl b T 로 껐다 켰다 할 수 있음
ctrl b t 로 타이틀 바꿀 수 있음