tmux(1) synchronize panes toggling

tmux.conf

set -g status-style 'bg=green fg=black'
set -g status-position top

set -g message-style 'bg=yellow fg=black'

set -g pane-border-status bottom
set -g pane-border-style 'bg=black fg=white dim'
set -g pane-active-border-style 'bg=black fg=cyan'
set -g pane-border-format "#{?pane_active,#[reverse],#[default]} #{pane_title} (#{pane_index}) "

bind z run-shell '\
  tmux show-options -w |grep -q "^synchronize-panes on$" && { \
    tmux set-option -w synchronize-panes off; \
    tmux set -g status-style "bg=green fg=black"; \
    tmux set -g pane-active-border-style "fg=cyan"; \
  } || { \
    tmux set-option -w synchronize-panes on; \
    tmux set -g status-style "bg=red fg=black"; \
    tmux set -g pane-active-border-style "fg=red"; \
  }'

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