My tmux config

.tmux.conf

# what this config does:
# 1. beautify the status bar
# 2. rebind prefix to C-a (prevent breaking your fingers)
# 3. rebind window swapping to cursor keys
# 4. bind C-r to reload config
# 5. disable mouse scroll, but bind C-m/C-M to control it

#set -g utf8 on
#set -g default-terminal "screen-256color"
set -g default-terminal "xterm-256color"
set -g history-limit 30000

# bind C-a to default prefix key combination, unbind C-b
set -g prefix C-a
unbind C-b
bind C-a send-prefix

# rebind window swapping
bind -n S-left prev
bind -n S-right next
bind -n S-C-left swap-window -t -1
bind -n S-C-right swap-window -t +1

# disable mouse scroll
setw -g mouse off
# bind C-m/C-M to control mouse scroll if needed
bind m setw -g mouse on
bind M setw -g mouse off

# shorten command delay
set -sg escape-time 1

# set window and pane index to 1 (0 by default, 0 is too far from 1)
set-option -g base-index 1
setw -g pane-base-index 1

# bind C-r to reload ~/.tmux.conf
bind r source-file ~/.tmux.conf

# status bar
set-option -g status on
set -g status-interval 60

# visual notification of activity in other windows
setw -g monitor-activity on
set -g visual-activity off

# style status bar
set -g status-style bg=colour235,fg=white
set -g status-left " #(whoami)@#H "
set -g status-left-length 20
set -g status-right " %d.%m.%y %H:%M "
set -g status-right-length 16

set -g window-status-format " #I "
set -g window-status-style bg=colour235,fg=colour240
set -g window-status-activity-style bg=colour238,fg=white
set -g window-status-current-format " #W "
set -g window-status-current-style bg=white,fg=black

set -g message-style bg=black,fg=white

set-window-option -g aggressive-resize on