Gravity enable you to create beautiful wallpapers using the theory of gravitational forces on particles.

The process of creating a wallpaper with the utility is relatively simple:
1. Set a random Seed - the computer will pick one randomly on starting up. You can always pick another of your own, or you can ask it to Reseed automatically - essentially this seed is a unique number which you can use to repeatedly create the same image time and again if you so need.
2. Choose the number of Objects - these are essentially the items that will result in the bright light lines.
3. Choose the amount of Dust - these are the smaller items that create the background explosive effects.
4. Set the Screen Size you want the image to be created at (the preview window will only show 800x600 of the image, but by right-click-dragging with your mouse you can scroll the preview window around)
5. Hit Go to set the generation going.
6. You can Pause at any time, but the utility will Complete automatically when it has gone through 10,000 cycles.
7. At any point you can Save out the current image to your hard-drive.

The license of this software is Freeware, you can free download and free use this wallpaper tool software.