tmux: v3.5

Use terminal-features instead of terminal-overrides
to enable truecolor support.

- https://raw.githubusercontent.com/tmux/tmux/3.5/CHANGES
- tmux/tmux@d0eb3fe

.tmux/tmux.conf

@@ -38,7 +38,7 @@ set-option -g renumber-windows on
 set-option -g bell-action none
 
 # Enable RGB color if running in xterm
-set-option -g -a terminal-overrides ",xterm-256color:Tc"
+set-option -g -a terminal-features ",xterm-256color:RGB"
 
 # Unbind default prefix key
 unbind-key C-b