Smarties are oblate spheroids with a minor axis of about 5 mm (0.2 in) and a major axis of about 12 mm (0.5 in). They come in eight colours: red, orange, yellow, green, blue, mauve, pink and brown, although the blue variety was temporarily replaced by a white variety in some countries, while an alternative natural colouring dye of the blue colour was being researched.
Fancy Pants Man likes Smarties, and usually eats the orange ones.
Rowntrees of York, England, have been making "Chocolate Beans" since at least 1882. The product was renamed "Smarties Chocolate Beans" in 1937. Unfournatly, Rowntrees was forced to drop the words "chocolate beans" in 1937 due to trading standards requirements (the use of the word "beans" sounded like eating cocoa beans) so they adopted the "Milk Chocolate in a Crisp Sugar Shell". Later, they dropped the whole description, and the sweet was known as "Smarties".
In one of the earlier ranges of colours there was a light-brown Smartie. This was replaced in 1988 by the blue Smartie. Before 1958, dark-brown Smarties had a plain-chocolate centre, while light-brown ones were coffee-flavoured. The orange Smarties contained, and still contain in the UK, orange-flavoured chocolate.
In 2006 it was announced that Nestlé were removing all artificial colourings from Smarties in the United Kingdom, owing to consumer concerns about the effect of chemical dyes on children's health. Nestlé decided to replace all synthetic dyes with natural ones, but, unable to source a natural blue dye, removed blue Smarties from circulation. This caused the false alarm that Blue Smarties cause hyperactivity in kids, freaking parents out.
In the show
The Blue Smarties dye crisis was used in The portal to Squiggleville, as in this episode, Fancy gets KoopatroopaMan to find a natural blue dye, and they do, not before running into Mephone 6s, and blowing up stuff first.