MoodRing displays a mood ring on your desktop that changes color. MoodRing is designed to gather information from mouse and/or keyboard input. The color changes that occur will be somewhat slow, so if you're not inputting anything the ring will "cool down&quot\; and after several minutes will eventually drop to black. The color changes are black to brown to green to turquoise to blue.Options let you start the ring manually or automatically, choose keyboard or mouse input (or both), alter the amount of time it checks for input, choose the style of ring, and display the ring on your desktop or System Tray.