This is basically a translation of the original xpenguins to GNOME JS + some added features. I'll just give a brief summary of the files so that the reviewer knows which they can skim through and which they may wish to check more closely. The files that interact externally (connecting to signals etc) are: * extension.js : sets up the XPenguins status icon & connects it to the core program) * themeManager.js : searches in ~/.xpenguins/themes and [extension_dir]/themes for XPenguins themes and does some file reading) * ui.js : various UI elements extending PopupMenuItem & ModalDialog * util.js : utility functions, including one that works out the system load average (either via GTop if the -dev package is installed, or by reading /proc/loadavg) * windowClone.js: a dummy class that (internally) interacts with either a Meta.WindowActor or a Clutter.Stage, but externally has a uniform API. * windowListener.js : listens to various window manager/window events) * xpenguins.js : core XPenguins code: handles running the animation via Clutter.threads_add_timeout, making sure the current snapshot of windows is up to date, etc (it inherits from windowListener.js) The other files really just pertain to the core xpenguins program and do not interact externally with the OS: * theme.js : handles creating an object representing the XPenguins theme (after it's been loaded from file by themeManager.js) * toon.js : handles toon behaviour The 'themes' dir is a bunch of XPenguins theme (the same one you get if you install XPenguins via the package manager).

Looks fine. I'd recommend that you don't use Meta.Rectangle, but that's it.