This is why I quickly put together because I like the cleanliness of it. I borrowed nearly everything from themes I saw in this forum. The basic is based on that of BlackOSX, and the latest linen background is from the post below me. Tested, but limited to my 2 Hackintoshes. So modify whatever elements you please.
Moderator Edit: I've added a thumb.jpg attachement to allow the main theme listing to show a preview and added [Theme] to topic title as per posting guidelines.