my tmux config

.tmux.conf

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

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

# Bind Split Panes and Windows to automatically start in current dir
bind % split-window -h -c '#{pane_current_path}'
bind '"' split-window -v -c '#{pane_current_path}'

# Active pane border colour
set-option -g pane-active-border-fg yellow

# Show Pane Number
set-option -g status-left '#P'