The Easter Bunny (also called the Easter Rabbit or Easter Hare) is a folkloric figure and symbol of Easter, depicted as a rabbit—sometimes dressed with clothes—bringing Easter eggs. Originating among German Lutherans, the "Easter Hare" originally played the role of a judge, evaluating whether children were good or disobedient in behavior at the start of the season of Eastertide, similar to the "naughty or nice" list made by Santa Claus. As part of the legend, the creature carries colored eggs in its basket, as well as candy, and sometimes toys, to the homes of children. As such, the Easter Bunny again shows similarities to Santa (or the Christkind) and Christmas by bringing gifts to children on the night before a holiday. The custom was first mentioned in Georg Franck von Franckenau's De ovis paschalibus ('About Easter eggs') in 1682, referring to a German tradition of an Easter Hare bringing eggs for the children.
Chroma key compositing, or chroma keying, is a special effects / post-production technique for compositing (layering) two images or video streams together based on color hues (chroma range). The technique has been used heavily in many fields to remove a background from the subject of a photo or video – particularly the newscasting, motion picture and videogame industries. A color range in the foreground footage is made transparent, allowing separately filmed background footage or a static image to be inserted into the scene. The chroma keying technique is commonly used in video production and post-production. This technique is also referred to as color keying, colour-separation overlay (CSO; primarily by the BBC), or by various terms for specific color-related variants such as green screen, and blue screen – chroma keying can be done with backgrounds of any color that are uniform and distinct, but green and blue backgrounds are more commonly used because they differ most distinctly in hue from most human skin colors. No part of the subject being filmed or photographed may duplicate the color used as the backing.