I've been using kitty and tmux together for years and recently realized my setup for true colors was broken, thanks to neovim's
:checkhealth command. After some searching and trial and error, the setup I ended up at was this:
- Remove any
export TERMlines from
- Set these options in tmux:
set -g default-terminal "screen-256color" set-option -sa terminal-overrides ",xterm-kitty:RGB"
- Kill tmux, close kitty, reopen and true color support should be enabled