set -g default-terminal "xterm-kitty"                                                                    
set -g terminal-overrides "xterm-kitty"                                                                                             
# true colours support                                                                                                              
# set -ga terminal-overrides ",*256col*:Tc"                                                                              
set -ga terminal-overrides ",xterm-256color:Tc"                                                                         
set -as terminal-overrides ',*:Smulx=\E[4::%p1%dm'                                                   
# underscore colours - needs tmux-3.0                                                                                               
set -as terminal-overrides ',*:Setulc=\E[58::2::%p1%{65536}%/%d::%p1%{256}%/%{255}%&%d::%p1%{255}%&%d%;m'