In Italian folklore, Befana is an old woman who delivers gifts to children throughout Italy on Epiphany Eve (the night of January 5) in a similar way to Santa Claus or the Three Magi Kings. A popular belief is that her name derives from the Feast of Epiphany (Italian: Festa dell'Epifania). Epifania is a Latin word with Greek origins meaning "manifestation (of the divinity). Some suggest that Befana is descended from the Sabine/Roman goddess named Strenia. In popular folklore, Befana visits all the children of Italy on the eve of the Feast of the Epiphany to fill their socks with candy and presents if they are good, or a lump of coal or dark candy if they are bad. In many poorer parts of Italy and in particular rural Sicily, a stick in a stocking was placed instead of coal. Being a good housekeeper, many say she will sweep the floor before she leaves. To some the sweeping meant the sweeping away of the problems of the year. The child's family typically leaves a small glass of wine and a plate with a few morsels of food, often regional or local, for the Befana.
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.