Delete vim colors files.

dotfiles/tmux.conf

@@ -1,6 +1,6 @@
 unbind C-g
-set -g prefix C-b
-bind-key C-b send-prefix
+set -g prefix C-o
+bind-key C-o send-prefix
 
 set-option -g status on
 bind-key @ command-prompt -p "create pane from:"  "join-pane -s ':%%'"