Theming

Wallble is a nice desktop wallpaper discovery tool.

Launchd(8) frontend allowing you to manage and debug system and user services on your Mac.

It can change the icons of your files and folders.

This application provides you with various wallpapers.

Change and create folder icons.

Display underwater animation with sharks on your desktop.

This tool helps you change the appearance of folder icons on your Mac.

Set wallpapers that include the date and time.

This app displays a curtain or image on top of your Desktop icons and apps.

A program for creating icons for your directories.

Extract icons from any file stored on your Mac.

Free application that takes the headache out of managing styles for your Leopard dock.

This program helps you fill your desktop with a blank window.

This is simply a ticker clock.

Cocoa program that is based on the popular program, xplanet (by...

Finally available for download and purchase!

Similar to "tiled windows" functionality available on other operating...

Customize Spaces with a different desktop picture for each Space.

Decorate your screen with lovely tanks.

Model2Icon converts 3D models into Windows and Mac OS X icons.

Resize and place your windows just using your keyboard.

Scan your text to your computer.

Do all your folder look the same?

App designed from the ground up for taking quick notes, with syncing via MobileMe.

Create and export quality icon files with minimum effort.