git clone 'git://github.com/jasonm23/emacs-mainline.git'
This is a fork of powerline.el which I began while the original authorship of powerline was unknown.
Note: Mainline is being merged with the other active fork of Powerline - The new separators and serveral new ones have been added already. I will be retiring emacs-mainline in light of this, and 1.2.8 is likely the final release. I suggest you switch over to Powerline if you are using main-line currently.
Add a require to .emacs / init.el
You can customize the separator graphic by setting the custom variable (you can also click the separators to cycle through them)
(setq main-line-separator-style 'wave)
To customize the modeline - simply override the value of mode-line-format, see the default at the end of the script, as an example.
You can create your own modeline additions by using the defmain-line macro.
(defmain-line row "%4l")
main-line-row to use in
main-line-percent-xpm requires 18px separators (use