Kuroo is a frontend to Gentoo Portage and the emerge tool.

Features summary:
* Manage and browse installed packages and the local "Portage tree".
* Emerge queue.
* Update single packages or whole system/world.
* Unmask testing packages.
* Fast packages find by name and description.
* Watch Glsa and latest released package with "Gentoo Watcher" in system tray.
* Check packages with new "glsa-check" (experimental).
* Portage directories size overview.
* Update etc-files with external diff tool.
* Emerge time approximation based on average from emerge log.
* Auto unmask support.
* Portage overlay support.