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Vignoni is the creator of the Nuvola icon set, which has been used in many projects including script.aculo.us[1] and Prototype JavaScript Framework.[2] He has designed icons for several web sites, including OpenSUSE.org. He has also designed icon sets for applications such as Flumotion, Samba 2000 , and Strata (an insurance application). He has also designed icons for various KDE projects, such as and Kontact and the KDE Edutainment Project. David is one of the Founders of the Oxygen Project, which is the default icon theme on the KDE flagship desktop.
David graduated in 2005 from Università Di Bologna with a B.S. degree in Computer Science.[3] He has worked as a consultant for SuSE Linux, as an independent graphic designer, and at Meebo. Previously lead at designer at Hailo. He lives and works in London.