.tmux.conf

# synchronize at window level
bind y set synchronize-panes
set-option -ag status-left '#{?pane_synchronized, #[bg=blue]SYNC!!!#[default],}'

#set-option -g synchronize-panes on

# use a large scrollback history
set-option -g history-limit 100000

set-option -g mode-keys vi

set-option -g base-index 1
set-option -g pane-base-index 1   # start pane indices at 1

set -g default-terminal "screen-256color"

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

set -g mouse on
bind-key -T root PPage if-shell -F "#{alternate_on}" "send-keys PPage" "copy-mode -e; send-keys PPage"
bind-key -t vi-copy PPage page-up
bind-key -t vi-copy NPage page-down


bind -n C-WheelUpPane select-pane -t= \; copy-mode -e \; send-keys -M
bind -t vi-copy    C-WheelUpPane   halfpage-up
bind -t vi-copy    C-WheelDownPane halfpage-down

#to make active pane highlight
set-window-option -g window-style 'bg=#181818'
set-window-option -g window-active-style 'bg=black'
set-window-option -g pane-active-border-style ''


unbind C-b
set -g prefix C-a
bind C-a send-prefix