run-shell 'tmux setenv -g TMUX_VERSION $(tmux -V | sed -En "s/^tmux (next-)?([0-9]+(.[0-9]+)?).*/\2/p")' # Use ctrl-w as prefix. unbind C-b bind C-w send-prefix # Enable mouse. set-option -g mouse on # Set terminal to 256 colors. set-option -g default-terminal "xterm-256colors" # Support OSC 52. set-option -ga...