{
  programs.tmux = {
    enable = true;
    shortcut = "a";
    keyMode = "vi";
    clock24 = true;
    extraConfig = ''
      # Enable mouse mode (tmux 2.1 and above)
      set -g mouse on

      # split panes using | and -
      bind | split-window -h
      bind - split-window -v
      unbind '"'
      unbind %

      # change status bar color
      bind-key r source-file ~/.tmux.conf \; display-message "Konfiguration neu geladen"

      # status bar theme
      set -g status-bg 'colour235'
      #set -g message-command-fg 'colour222'
      set -g status-justify 'centre'
      set -g status-left-length '100'
      set -g status 'on'
      #set -g pane-active-border-fg 'colour154'
      #set -g message-bg 'colour238'
      set -g status-right-length '100'
      #set -g status-right-attr 'none'
      #set -g message-fg 'colour222'
      #set -g message-command-bg 'colour238'
      #set -g status-attr 'none'
      #set -g status-utf8 'on'
      #set -g pane-border-fg 'colour238'
      #set -g status-left-attr 'none'
      #setw -g window-status-fg 'colour121'
      #setw -g window-status-attr 'none'
      #setw -g window-status-activity-bg 'colour235'
      #setw -g window-status-activity-attr 'none'
      #setw -g window-status-activity-fg 'colour154'
      setw -g window-status-separator ' '
      #setw -g window-status-bg 'colour235'
      set -g status-left '#[fg=colour232,bg=colour154] #S #[fg=colour154,bg=colour238,nobold,nounderscore,noitalics]#[fg=colour222,bg=colour238] #W #[fg=colour238,bg=colour235,nobold,nounderscore,noitalics]#[fg=colour121,bg=colour235] #(whoami)  #(uptime  | cut -d " " -f 1,2,3) #[fg=colour235,bg=colour235,nobold,nounderscore,noitalics]'
      set -g status-right '#[fg=colour235,bg=colour235,nobold,nounderscore,noitalics]#[fg=colour121,bg=colour235] %r  %a  %Y #[fg=colour238,bg=colour235,nobold,nounderscore,noitalics]#[fg=colour222,bg=colour238] #H #[fg=colour154,bg=colour238,nobold,nounderscore,noitalics]#[fg=colour232,bg=colour154] #(rainbarf --battery --remaining --no-rgb) '
      setw -g window-status-format '#[fg=colour235,bg=colour235,nobold,nounderscore,noitalics]#[default] #I  #W #[fg=colour235,bg=colour235,nobold,nounderscore,noitalics]'
      setw -g window-status-current-format '#[fg=colour235,bg=colour238,nobold,nounderscore,noitalics]#[fg=colour222,bg=colour238] #I  #W  #F #[fg=colour238,bg=colour235,nobold,nounderscore,noitalics]'
    '';
  };
}