Pros:
Watch out everyone! It's Nickelodeon's own Invader Zim and he's ready to invade your desktop. Theme parts include an 800x600 bitmap wallpaper image centered over a well matched purple and black effects background. An additional set of 4 different 800x600 images are included in both JPG and GIF format. There are 5 very good cutout type desktop icons, a few new animated cursors, static cursors, and 23 PCM sound files. The author has also added two different color schemes so you can choose the one that's right for you.

Cons:
There are no web view images, system logo screens or screen saver settings included. Most of the cursors are the standard 3D type. Installation instructions are great but there should be something in there that says to make sure all theme parts end up in a 'Zim' subdirectory within the themes directory. In other words, you can't just extract it to the root of the themes directory. Most theme users probably already know this but it can't hurt to add that in the instruction.

Overall:
It's one of the most complete Invader Zim themes so far. A few more parts and it'll be perfect far into the future.