My current .tmux.conf file

.tmux.conf

# screen-like prefix
unbind C-b
set -g prefix C-a

# Indexing from 1 instead of 0
set -g base-index 1
set -g pane-base-index 1

# Reload config
bind r source-file ~/.tmux.conf \; display "Reloaded tmux config file."

set -g status-utf8 on

set -g status-bg colour235

# Fancy tmux :3
set -g default-terminal "screen-256color"
setw -g monitor-activity on
set -g visual-activity on
setw -g automatic-rename on
set -g repeat-time 0

# Some insane key binding
bind | split-window -h
bind - split-window -v
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

set-option -g status on
set-option -g status-interval 2
set-option -g status-utf8 on
set-option -g status-justify "centre"
set-option -g status-left-length 60
set-option -g status-right-length 90
set-option -g status-left "#(~/tmux-powerline/powerline.sh left)"
set-option -g status-right "#(~/tmux-powerline/powerline.sh right)"

set-window-option -g window-status-current-format "#[fg=colour235, bg=colour27]⮀#[fg=colour255, bg=colour27] #I ⮁ #W #[fg=colour27, bg=colour235]⮀"