My ~/.tmux.conf

.tmux.conf

# change prefix key to alt+a
set-option -g prefix M-a

# shorten the key repeat interval
set-option -g repeat-time 200

# to not lose the color when enter into tmux
set -g default-terminal "screen-256color"

# bind switching to panel with vim's motion keys
bind -r h select-pane -L
bind -r j select-pane -D
bind -r k select-pane -U
bind -r l select-pane -R

# make the active focused window clearer to the eye of users
set-option -g pane-active-border-style fg='#55FF55,bg=#44DD44'
set-option -g pane-border-style fg='#006600'
set-option -g window-style 'bg=black'
set-option -g window-active-style 'bg=black'
set-option -g status-style 'bg=#55AA55,fg=black'