I have 256 colors working just fine in konsole,. I thought I'd give tmux a try because, unlike screen, it seems to support vi mode.  However I find that the colors of my prompt show up and this is most likely because I have a 256 color mode prompt. What do I need to do to get tmux to recognize all 256 colors?
Getting 256 colors to work in tmux
colors;tmux;settings;konsole
The tmux FAQ ( https://raw.githubusercontent.com/tmux/tmux/master/FAQ ) explicitly advises against setting TERM to anything other than screen or screen-256color in your shell init file, so don't do it!Here's what I use:~$ which tmuxtmux: aliased to TERM=xterm-256color tmuxand in in my .tmux.conf:set -g default-terminal screen-256colorAliasing tmux to tmux -2 should also do the trick.