my tmux config

.tmux.conf

# Change the prefix key to C-a
set -g prefix C-a
unbind C-b
bind C-a send-prefix

# Turn the mouse on, but without copy mode dragging
set -g mouse on
unbind -n MouseDrag1Pane
unbind -Tcopy-mode MouseDrag1Pane

# Use Alt-arrow keys without prefix key to switch panes
bind -n M-Left select-pane -L
bind -n M-Right select-pane -R
bind -n M-Up select-pane -U
bind -n M-Down select-pane -D

# Shift arrow to switch windows
bind -n S-Left  previous-window
bind -n S-Right next-window

# Change the default $TERM to tmux-256color
set -g default-terminal "tmux-256color"

# start with window/pane 1 (instead of 0)
set -g base-index 1
set -g pane-base-index 1

# COLORS: Windows & pane
set -g window-style fg=colour244,bg=colour232
set -g window-active-style fg=brightwhite,bg=black
# set -g pane-border-bg colour232
# set -g pane-border-fg colour244
set -g pane-border-style fg=colour232,bg=colour244
#set -g pane-active-border-bg default
# set -g pane-active-border-fg brightwhite
set -g pane-active-border-style fg=brightwhite,bg=default

# COLORS: Status bar
# set -g status-fg brightwhite
# set -g status-bg colour234
#set -g status-attr none
set -g status-style fg=brightwhite,bg=colour234
# setw -g window-status-fg default
# setw -g window-status-bg default 
#setw -g window-status-attr dim
setw -g window-status-style fg=default,bg=default
# setw -g window-status-current-fg brightwhite
# setw -g window-status-current-bg colour238
# setw -g window-status-current-attr bold
setw -g window-status-current-style fg=brightwhite,bg=colour238,bold
# setw -g window-status-bell-fg brightyellow
# setw -g window-status-bell-bg default
# setw -g window-status-bell-attr bold
setw -g window-status-bell-style fg=brightyellow,bg=default,bold
#setw -g window-status-activity-fg brightyellow
#setw -g window-status-activity-bg default
# setw -g window-status-activity-attr bold
setw -g window-status-activity-style bold

# FORMATS: Status bar
set -g status-left '#{?client_prefix,#[bg=colour4]*,}#[bg=default][#S] '

# COLORS: Messages
#set -g message-fg default
# set -g message-bg brightyellow
#set -g message-attr bright
# set -g message-style fg=default,bg=yellow

# enable activity alerts
setw -g monitor-activity on
set -g visual-activity off
setw -g visual-bell on
setw -g bell-action other




# # Some tweaks to the status line
# set -g status-right "%H:%M"
# set -g window-status-current-attr "underscore"

# # If running inside tmux ($TMUX is set), then change the status line to red
# %if #{TMUX}
# set -g status-bg red
# %endif

# # Enable RGB colour if running in xterm(1)
# set-option -sa terminal-overrides ",xterm*:Tc"

# # Keep windows around after they exit
# set -g remain-on-exit on

# # Some extra key bindings to select higher numbered windows
# bind F1 selectw -t:10
# bind F2 selectw -t:11
# bind F3 selectw -t:12

# # Keys to toggle monitoring activity in a window, and synchronize-panes
# bind m set monitor-activity
# bind y set synchronize-panes\; display 'synchronize-panes #{?synchronize-panes,on,off}'

# # Create a single default session, because a session is created here, tmux
# # should be started with "tmux attach" rather than "tmux new"
# new -d -s0 -nirssi 'exec irssi'
# set -t0:0 monitor-activity on
# set  -t0:0 aggressive-resize on
# neww -d -ntodo 'exec emacs ~/TODO'
# setw -t0:1 aggressive-resize on
# neww -d -nmutt 'exec mutt'
# setw -t0:2 aggressive-resize on
# neww -d