Eye candy is a term used in information technology for visual elements displayed on computer monitors that are aesthetically appealing or attention-compelling. There are several different usages:
1) Eye candy sometimes means any frill or decorative design intended to enhance the basic content of a presentation. In this usage, the connotation of "unnecessary" may or may not be present.
2) It is also used to refer to software that produces psychedelic or fractal images on a display as a screensaver or background. Some eye candy programs use audio input to generate sympathetic graphical output - in effect, sophisticated sound-to-light effects. In some cases, the software exists solely to provide visual entertainment or atmosphere as either a background or as a celebration of the technological possibilities.