Kupfer is an alternative to Gnome DO, heavily inspired by Quicksilver (Mac). What does it do? It's a quick launcher - an application you can use to easily control different applications and/or actions via plugins.
Kupfer v202 has been released today, finally adding AppIndicator (application indicator) support for Ubuntu users.
Kupfer v202 also adds an option to hide Kupfer when focus is lost - this is now enabled by default, as well as other minor tweaks and updated/new translations. Full changelog.
Add the Kupfer PPA and install the latest Kupfer in Ubuntu using the following commands:
sudo add-apt-repository ppa:kupfer-team/ppa && sudo apt-get update sudo apt-get install kupfer
And two Kupfer tips:
1. Download and install Kupfer monochrome icons
2. To remove the titlebar (and make Kupfer look like in our screenshot), run the following command in a terminal:
sudo gedit /usr/share/kupfer/kupfer/ui/browser.py
Then search for "self.window.add(widget)" and under it, paste this:
This last tip is thanks to Pablo @ glatelier.