dark mode

.gvimrc

function! SetMode()
	call system("defaults read -g AppleInterfaceStyle")
	if v:shell_error
		se bg=light
	else
		se bg=dark
	endif
endfunction
call SetMode()

.profile

defaults read -g AppleInterfaceStyle 2>&- >&-
if (( $? ))
then
	# light mode
	export COLORFGBG='0;15'
else
	# dark mode
	export COLORFGBG='15;0'
fi

.ssh config

SendEnv COLORFGBG

.tmux.conf

set -g update-environment COLORFGBG

etc ssh sshd_config

AcceptEnv COLORFGBG