Add it to the path, in .bashrc:

export PATH=$HOME/local/bin:$PATH

To make it pretty:

git clone https://github.com/jimeh/tmux-themepack.git ~/.tmux-themepack

Followed by something like:

echo 'source-file "${HOME}/.tmux-themepack/powerline/block/cyan.tmuxtheme"' >> .tmux.conf

Scrolling and copy-mode sanity: (alt/option-click to use iTerm2 selections):

set -g mouse on
bind -n WheelUpPane if-shell -F -t = "#{mouse_any_flag}" "send-keys -M" "if -Ft= '#{pane_in_mode}' 'send-keys -M' 'copy-mode -e; send-keys -M'"

#unbind -T copy-mode MouseDragEnd1Pane
unbind -T copy-mode MouseDragEnd1Pane
bind -T copy-mode MouseDown1Pane select-pane \;\
  send-keys -X copy-pipe "pbcopy" \;\
  send-keys -X clear-selection

Shortened path indicator in status bar.

in ~/local/bin/minipwd:

#!/bin/bash

current_path=$1
length_trigger=$2
directory_break="..."

# Swap out home path for tilde
mini_pwd="${current_path/#$HOME/~}"

# If the path is longer than the length specified, then we shorten it
if [ $(echo -n $mini_pwd | wc -c | tr -d " ") -gt $length_trigger ]
then
   mini_pwd=$(echo -n $mini_pwd | awk -F '/' '{print $1 "/" $2 "/.../" $(NF-1) "/" $(NF)}')
fi
echo $mini_pwd

in .tmux.conf, or theme file, do something like:

set -g status-right "#[fg=colour232,bg=colour245,bold] #(minipwd #{pane_current_path} 20) "