Haiku the colloquialism of the language and is closest to natural conversational rhythm, necessary to carry the weight of the hokku A haiku traditionally contains a "kigo", a word or phrase that symbolizes or implies the season of the poem and which is drawn from a "saijiki", an extensive but prescriptive list of such words. Kigo are often in the form of metonyms and can be difficult for those who lack Japanese cultural references to spot. The Bashō examples below include "kawazu", "frog" implying spring, and "shigure", a rain shower in late autumn or early winter. Kigo are not always included
Haiku Vector Icon Format Haiku Vector Icon Format Haiku Vector Icon Format (HVIF) is a vector storage format designed to store icons, specifically for Haiku. Haiku developers commonly agreed that Haiku could not be released with original BeOS R5 icons. Since Haiku needed its own artwork anyway, it was thought that icons could switch to vectors graphics from traditional BeOS bitmaps. In July 2006 Haiku developer Stephan Aßmus introduced Icon-O-Matic, the icon editor of Haiku, and a storage format with a rendering engine based on Anti-Grain Geometry. After a few days of discussion, Aßmus announced a contest to determine an icon theme for Haiku.